Book summary “Undaunted Courage”: summary

Introduction

You want to understand how a vast, unexplored continent became part of the American republic through singular leadership and meticulous planning. You face the challenge of grasping the sheer scale of the wilderness that confronted early statesmen and explorers.

President Thomas Jefferson and Meriwether Lewis orchestrated the Corps of Discovery to open the American West, transforming a continental vision into geographical and scientific reality.

Stephen E. Ambrose traces this monumental undertaking from presidential strategy to wilderness survival. You will learn about the careful preparation in Philadelphia, the arduous journey up the Missouri River, the crossing of the Rocky Mountains, and the tragic final years of the expedition's leader.

You will discover the answers to several vital questions as you read:

• How did Thomas Jefferson plan the geopolitical strategy for continental expansion?
• What specific military training prepared Meriwether Lewis for frontier command?
• How did the expedition manage diplomacy with native tribes along the route?
• What obstacles did the explorers face in the Rocky Mountains?
• What led to the tragic decline of Meriwether Lewis after his return?

1. Lewis's Early Life and Military Training

Meriwether Lewis developed hardy survival skills on the Virginia and Georgia frontiers before serving in the militia during the Whiskey Rebellion. You will find that his family background grounded him in land ownership and exploration traditions. His forebears arrived in Virginia in 1635 with a major land grant. Multiple family members established successful plantations and participated in early western explorations. His relative Thomas Lewis accompanied Peter Jefferson on an 1746 expedition into the Northern Neck and kept an early exploration journal. The first Robert Lewis received a land grant of 33,333 1/3 acres upon his arrival. William Lewis, Meriwether's father, inherited 1,896 acres, and the Meriwether family held 17,952 acres near Charlottesville by 1730.

Frontier Upbringing

Lewis's mother, Lucy, was a resilient and capable frontier woman who passed down vital wilderness and medicinal knowledge. Following the early death of her first husband William Lewis and later her second husband John Marks, she successfully managed households, defended her property, and cultivated medicinal herbs. She lived to the approximate age of 86 years.

She once grabbed a rifle off the wall to drive off a group of drunken British officers and shot a buck that had been brought to bay on her lawn by hounds.

As a young boy living temporarily on the Georgia frontier, Lewis developed hardy survival habits, fearlessness, and self-possession. He learned woodcraft, hunting, and plant identification, displaying remarkable poise and determination during dangerous encounters. When he was around eight or nine years old, he habitually went out alone into the forest at night with his dogs to hunt raccoons and opossums.

Education for a planter's son in eighteenth-century Virginia relied on private tutors rather than public schools. Young men boarded with local parsons or teachers to study Latin, mathematics, natural science, and English grammar before managing estates. Lewis's guardian made a room, board, and tuition payment of 7 pounds in June 1788 to study under instructors like Parson Matthew Maury, Dr. Charles Everitt, and Reverend James Waddell.

Under Virginia's primogeniture laws, Lewis inherited a substantial estate at a young age and took over management as a teenager. At age eighteen, he became the head of a household comprising thousands of acres and numerous slaves, learning the practical details of running a self-sufficient agricultural community. Upon returning to Virginia from Georgia, Lewis took up residence at Locust Hill and managed crop production, livestock, and equipment repairs. His inheritance included the 2,000-acre plantation estate, 520 pounds in cash, 24 slaves, and 147 gallons of whiskey.

Military Career

Dissatisfied with the sedentary life of a planter, Lewis sought out grander adventures and opportunities to explore. Fascinated by exploration and desiring a more active role than estate management allowed, Lewis eagerly pursued opportunities to join western expeditions and military call-ups. At age twenty, he enlisted as a volunteer in the militia called out by President George Washington to suppress the Whiskey Rebellion.

A soldier's life on the frontier combined strict discipline with harsh realities.

The Whiskey Rebellion of 1794 was triggered by Alexander Hamilton's excise tax on whiskey, which disproportionately burdened trans-Appalachian frontiersmen who lacked hard currency and felt neglected by the federal government. President Washington called out 13,000 militiamen to face the unrest against a regular army strength of 5,424 officers and men. Frontier farmers revolted by refusing to pay the tax, shooting at revenue officers, tarring and feathering them, and burning down their houses.

The romanticized military expedition to suppress the Whiskey Rebellion dissolved into administrative chaos, supply shortages, and brutal discipline during its march through the mountains. Enlisted men suffered from severe shortages of shoes, blankets, and ammunition, leading to rampant plundering, hunger, and desertion. One of Meriwether Lewis's fellow Virginia volunteers was caught taking a beehive and was punished with a hundred lashes, while the theft of a blanket cost fifty lashes.

The post-Revolutionary US regular army operated as a frontier constabulary divided into isolated garrisons where severe corporal punishment was used to maintain control and prevent desertion. The regular army was reduced in size to 3,359 men after 1794 and dispersed into tiny remote outposts. When a private ran off from Fort Defiance in 1795, officers offered two Shawnee Indians 10 dollars for bringing him back alive and 20 dollars for his scalp, and a warrior returned the next day with the scalp.

The historic partnership between Meriwether Lewis and William Clark originated from a military transfer forced by a duel challenge and General Anthony Wayne's preference for dueling over courts-martial. Ensign Meriwether Lewis got into a political argument while intoxicated with Lieutenant Eliott at age 21 in 1795 and subsequently issued a duel challenge. After a court-martial acquitted Lewis with honor, General Wayne transferred him out of Eliott's unit to the elite Chosen Rifle Company commanded by William Clark.

Meriwether Lewis transitioned from a staunch Federalist volunteer during the Whiskey Rebellion to an ardent Jeffersonian Republican who embraced French Revolutionary sympathies and political arguments. He addressed a May 22, 1795, letter to his mother as "Cittizen Lucy Markes, Albemarle, Virginia," adopting the Republican style inspired by the French Revolution. He engaged in vigorous political debates against Federalist officers while serving in Detroit.

2. Jefferson's Vision and Expedition Preparation

Thomas Jefferson appointed Meriwether Lewis as his private secretary to plan an ambitious continental exploration mission.

In 1801, the United States was severely limited by the speed of transportation and communication, as nothing moved faster than a horse and infrastructure was rudimentary. It took Jefferson ten days to travel the 225 miles from Monticello to Philadelphia, and moving information or cargo from the Mississippi River to the Atlantic seaboard took six to eight weeks. Thomas Jefferson envisioned an expansive continental Empire of Liberty and pursued western lands and an all-water route to the Pacific despite prevalent geographic misconceptions.

Jefferson offered Lewis a salary of 500 dollars per year, assuring him he would retain his military rank and right to promotion while living in the President's House as part of the family. Lewis accepted the post in March 1801, walking or riding through spring rains from Pittsburgh to Washington to arrive on April 1. Lewis utilized his extensive knowledge of the military and the Western country to help Jefferson purge extreme Federalists from the army officer corps.

Alexander Mackenzie's published account of his overland journey across Canada to the Pacific Ocean served as the direct catalyst for the Lewis and Clark expedition. During August 1802 at Monticello, Jefferson and Lewis read Mackenzie's book, viewing his inscription painted on a Pacific coast rock as an irresistible challenge. Jefferson secured secret congressional funding and diplomatic passports to dispatch Meriwether Lewis on an exploratory mission disguised as a commercial venture. Lewis calculated the precise expenses for a party of one officer and ten to twelve soldiers, totaling 2,500 dollars.

The President's Secretary

Jefferson provided Meriwether Lewis with an intensive crash course in science, navigation, and literature to prepare him for leadership of the western expedition. President Jefferson issued comprehensive, multi-faceted instructions to Meriwether Lewis that prioritized commercial water routes, scientific observation, and detailed ethnographic data collection on native tribes.

You can follow specific guidelines when studying historical expedition protocols:

• Take careful observations of latitude and longitude at all remarkable points on the river
• Write figures and observations distinctly and intelligibly, making multiple copies including one on birch paper
• Learn the names, numbers, customs, diseases, and commercial needs of the Indian tribes
• Treat natives in a friendly and conciliatory manner while informing them of the size and strength of the United States
• Decline further pursuit and return if faced by a superior force determined to stop the expedition

President Jefferson provided Meriwether Lewis with an unprecedented letter of general credit to ensure he could secure supplies anywhere in the world once funds ran out. Meriwether Lewis invited William Clark to join the expedition as an equal co-commander, forming one of history's most famous partnerships. Lewis wrote an invitation letter to Clark from Washington on June 19, 1803, offering him a co-command despite initial War Department paperwork authorizing only a single lieutenant.

Scientific Training and Procurement

Lewis spent a month at the U.S. Army arsenal in Harpers Ferry securing dependable firearms and supervising the construction of an innovative collapsible iron-frame boat. Lewis obtained 15 .54-caliber U.S. Model 1803 rifles and three dozen pipe tomahawks. He also experimented with a two-part iron boat frame designed to weigh only 44 pounds while carrying 1,770 pounds when covered with animal skins.

To ensure accurate geographical measurements, Lewis undertook rigorous scientific training under America's top astronomers and mathematicians. Lewis purchased a chronometer from watchmaker Thomas Parker for $250, the single most expensive item on the expedition. Eminent physician Dr. Benjamin Rush prepared an extensive medical kit and a list of inquiries regarding Indian customs to equip Lewis for health emergencies and anthropological research.

You can follow standard medical protocols used by the expedition's leaders:

• Rest in a horizontal posture at the least feeling of indisposition
• Use fasting and diluting drinks for a day or two to prevent fever
• Obtain a gentle sweat through warm drinks or gently opening the bowels with purging pills

Lewis invested heavily in portable soup as an essential nutritional backup, creating a significant cost overrun. Lewis spent $289.50 on 193 pounds of portable soup, which matched his initial budget for instruments, arms, and ammunition combined. Philadelphia scientists trained Lewis in specimen preservation, expanding his technical vocabulary to accurately record unknown plants and animals. Lewis prioritized gay and gaudy trade goods over purely useful items to serve as currency for purchasing goods and services from western Indian tribes.

The sudden acquisition of the Louisiana Territory fundamentally altered the political landscape, removed foreign threats, and vastly increased the significance of the expedition. Napoleon sold all of Louisiana to the United States for 60 million francs, recognizing it would secure American power and humble Britain. Lewis designed a specialized, highly versatile keelboat in Pittsburgh that served as the primary vessel for ascending the river system. Lewis spent weeks supervising and pushing the reluctant boatbuilder in Pittsburgh until the vessel was completed and loaded on August 31, 1803.

Lewis and Clark exercised strict selectivity in gathering a crew of tough, unmarried woodsmen and hunters while rejecting unqualified gentlemen applicants.

You can apply similar screening rules for demanding field operations:

• Refuse applications from young gentlemen unaccustomed to physical labor
• Select stout, healthy, unmarried men accustomed to the woods and physical fatigue

William Clark recruited seasoned woodsmen in Kentucky including Charles Floyd, Nathaniel Pryor, William Bratton, Reubin Field, Joseph Field, George Gibson, and John Shields, while Lewis selected John Colter and George Shannon in Pittsburgh.

3. Ascending the Missouri to Fort Mandan

The Corps of Discovery navigated the Missouri River, conducted Indian diplomacy, and wintered at Fort Mandan.

You face the daunting task of moving a heavily laden keelboat upstream against a five miles per hour current. The Missouri River demands relentless physical labor, requiring you to master multiple navigation methods:

• Run up a sail if the wind is fair.
• Break out iron-pointed setting poles and push when the wind fails.
• Row if the bottom is deep enough.
• Bend a forty-fathom length of cordelling cable to the mast and put the crew ashore to haul on the line if the current is too swift.
• Tie up to the bank and wait for the wind to rise and blow fair if all other methods fitly fail.

Donald Jackson described the keelboat as an ungainly, wallowing drudge when loaded with ten or twenty tons of cargo. It also served as a little warship armed with a bronze swivel cannon firing a one-pound lead ball.

Operating in potentially hostile territory requires strict security. Lewis issued Detachment Orders establishing guards, sentinels, and routine messes. Private John Collins and Private Hugh Hall received one hundred and fifty and fifty lashes respectively for tapping a whiskey barrel while on guard duty.

You must record scientific observations and maintain health despite contaminated water and poor diet. Lewis killed a bull snake measuring five feet two inches with 221 belly scuta and 53 tail scuta. Clark noted that two-thirds of the men were afflicted with boils and dysentery.

You can follow a simple rule for safer drinking water:

• Dip cups below the surface scum when drawing drinking water to get cleaner water from deeper down.

You hold formal councils with native tribes to establish American economic dominance. Lewis delivered a twenty-five-word speech to Oto chiefs at Council Bluff after traveling six hundred miles in sixty-eight days. The expedition suffered its first fatality when Sergeant Charles Floyd died from bilious colic on August 19, 1804. Private Patrick Gass won nineteen votes in an election to replace him. Near Calumet Bluffs, you meet seventy Yankton Sioux warriors who arrive with musicians and forty painted tepees.

You encounter massive herds of wildlife and navigate tense diplomatic standoffs. Lewis recorded the first scientific description of the pronghorn, noting they could cover three miles before reappearing in a steep ravine. Near present Pierre, South Dakota, Teton Sioux chiefs demanded a canoe load of presents, leading Clark to draw his sword and Lewis to ready the swivel gun with sixteen musket balls before Black Buffalo intervened.

Winter at Fort Mandan

You construct a heavily fortified winter encampment as sub-zero temperatures arrive. The men built Fort Mandan with eighteen-foot-high outer walls, a palisade, and a mounted swivel gun. Temperatures reached forty-five below zero Fahrenheit during the winter months.

You trade forged metal goods to secure life-threatening food shortages. Blacksmith John Shields cut up an old stove into four-inch square pieces and traded them for seven to eight gallons of corn per piece.

Frontier medicine requires harsh remedies and direct surgical intervention. Lewis amputated a thirteen-year-old Mandan boy's frozen toes using household saws.

You apply period treatments during medical crises:

• Soak frozen feet in cold water as a standard treatment.
• Bleed the patient and purge with Rush's pills for pleurisy.
• Administer calomel pills containing mercurous chloride for syphilis.

Interpreter René Jessaume suggested an unconventional remedy when Sacagawea experienced prolonged labor with her first child, Baptiste.

You can follow this local procedure during similar emergencies:

• Break the rattle of a rattlesnake into small pieces.
• Mix the rattle pieces with water.
• Administer the mixture to a woman experiencing prolonged labor.

Sacagawea gave birth about ten minutes after drinking the mixture. You conclude the winter by preparing shipments for President Jefferson, including 108 botanical specimens, 68 mineral samples, and live animals like four magpies and a prairie dog.

4. Crossing the Rocky Mountains and Reaching the Pacific

The expedition crossed the Continental Divide, encountered the Shoshones and Nez Perce, and reached the Pacific Ocean.

You observe the party departing Fort Mandan on April 7, 1805. The fleet consists of six round-bottomed cottonwood dugout canoes and two pirogues, carrying thirty-three people including Sacagawea, her infant son, and her husband Charbonneau. Corporal Warfington commands the keelboat back downstream to deliver reports to President Jefferson across two thousand miles of unknown country.

Over the Continental Divide

You watch Meriwether Lewis become the first American to sight the snow-covered peaks of the Rocky Mountains on May 26, 1805. Lewis reaches the source of the Missouri River at Lemhi Pass and crosses the Continental Divide into the Columbia River watershed. You witness a remarkable reunion when Sacagawea unexpectedly recognizes and embraces her long-lost brother, Chief Cameahwait.

Crossing the Bitterroot Mountains proves to be the most grueling physical challenge of the expedition. You navigate obscure mountain trails and survive on melted snow and portable soup.

You follow these actions to navigate the dangerous river descent:

• Portage the journals, field notes, Jefferson's letter of credit, rifles, ammunition, and scientific instruments around dangerous falls.
• Send nonswimmers and the most valuable items by land while running the river in canoes with heavy baggage.
• Lower canoes through rapids using strong elk-skin ropes.

Winter at Fort Clatsop

You reach the Pacific Ocean in November 1805. William Clark records the immortal line Ocian in view! O! the joy while the party covers thirty-four miles in a single day as they race toward the Columbian estuary.

You participate in a historic democratic vote to decide where to establish winter quarters on the south shore of the Columbia. The vote includes York, an enslaved man, and Sacagawea, marking the first time in American history that an enslaved person and a woman vote. You help construct Fort Clatsop as a fifty-foot-square fortified winter encampment.

You maintain security by following these garrison rules:

• Keep a sergeant-of-the-guard and three privates always on duty in the orderly room.
• Post a sentinel day and night on the parade ground in front of the commanding officers' quarters.
• Ensure the sentinel reports any arriving Indians to the sergeant-of-the-guard immediately.
• Treat natives in a friendly manner but never permit them to abuse, assault, or strike soldiers.
• Shut and secure both gates overnight, requiring all Indians to leave at sunset unless given special permission.

5. Return Journey and the Final Years of Meriwether Lewis

The Corps of Discovery returned to St. Louis, and Meriwether Lewis faced political struggles and tragic decline as governor.

You can trace the final trials of the expedition as the men navigated home and confronted the realities of an expanding nation.

The Return to St. Louis

The expedition began its return journey with severely depleted resources and supplies compared to their departure from Fort Mandan. The party set off on foot and in canoes with minimal trade goods, having traded away most kettles and relying on four small cooking kettles, one per mess. During the return journey, Meriwether Lewis was accidentally shot in the buttocks by one of his own men, Private Pierre Cruzatte, who mistook him for an elk in the thick willows.

The Corps of Discovery successfully completed their epic journey in September 1806, arriving back to a stunned and joyful populace who had long assumed they were dead. When the party landed at St. Louis on September 23, 1806, approximately one thousand residents gathered on the bank to give them three cheers and a hearty welcome. Despite disappointments in Indian diplomacy and the absence of a water route across the continent, Lewis and Clark established a monumental scientific and geographic legacy.

Governorship and Death

As governor of Louisiana Territory, Lewis was ill-suited for politics and became engulfed in financial ruin and bitter administrative feuds. He signed a contract with the St. Louis Missouri River Fur Company to return Big White to the Mandans and issued drafts for government expenses. The new Madison administration refused to honor these drafts, destroying Lewis's credit and leaving him personally responsible for thousands of dollars in debt. Simultaneously, his tense relationship with Secretary Bates deteriorated into open hostility and political plots against him.

Plagued by severe depression, heavy drinking, and opium use, Lewis attempted suicide on his final journey before taking his life at Grinder's Inn. Traveling down the Mississippi and then along the Natchez Trace to reach Washington, Lewis suffered extreme mental breakdowns, attempted suicide twice on his boat, and was temporarily detained at Fort Pickering by Captain Gilbert Russell. On October 11, 1809, while staying at Grinder's Inn in Tennessee, he shot himself twice and inflicted severe wounds with a razor before dying.

Those who knew Lewis best, William Clark and Thomas Jefferson, never doubted that he died by suicide stemming from constitutional hypochondria and overwhelming stress. Thomas Jefferson later wrote in a biographical sketch that Lewis had suffered from constitutional hypochondria since early life, which returned with redoubled vigor during his sedentary occupations in St. Louis.

10 Key Ideas

1. Meriwether Lewis developed hardy frontier survival skills on the Virginia and Georgia frontiers before serving as a militia volunteer during the Whiskey Rebellion.
2. President Thomas Jefferson appointed Meriwether Lewis as his private secretary to plan an ambitious continental exploration mission.
3. Lewis spent a month at the U.S. Army arsenal in Harpers Ferry securing dependable firearms and supervising the construction of an innovative collapsible iron-frame boat.
4. The Corps of Discovery navigated the Missouri River, conducted Indian diplomacy, and wintered at Fort Mandan.
5. The expedition held formal councils with native tribes to establish American economic dominance, though they also faced tense diplomatic standoffs and food shortages.
6. The expedition crossed the Continental Divide, encountered the Shoshones and Nez Perce, and reached the Pacific Ocean after an arduous crossing of the Bitterroot Mountains.
7. Lewis recorded significant scientific discoveries, including the first scientific description of the pronghorn, while gathering extensive botanical and zoological specimens.
8. The Corps of Discovery successfully completed their epic journey in September 1806, arriving back to a stunned and joyful populace in St. Louis who had long assumed they were dead.
9. As governor of Louisiana Territory, Lewis was ill-suited for politics and became engulfed in financial ruin and bitter administrative feuds.
10. Plagued by severe depression, heavy drinking, and opium use, Meriwether Lewis took his life at Grinder's Inn, leaving behind a monumental scientific and geographic legacy confirmed by William Clark and Thomas Jefferson.