Nathaniel Leonard. [State Historical Society of Missouri, James M. Denny Photograph Collection (P0809)]

A prominent farmer and stock raiser of Cooper County, Missouri, and the founder of…

A facsimile of the title page in the first edition of Zenon Leonard’s narrative about his experiences. [Adventures of Zenon Leonard (Cleveland: Burrows Brothers Co., 1904)]

Zenas Leonard, a fur trapper best known as the author of Adventures of a Mountain Man…

An artist’s depiction of Fort San Carlos. Constructed under orders from Fernando de Leyba, it played a crucial role in stopping the British attack on St. Louis in 1780. [Walter B. Stevens, ed., History of St. Louis the Fourth City, 1764–1909, vol. 1 (1909)]

Controversy swirled around Upper Louisiana’s third lieutenant governor in life and in death…

Theodore Link, circa 1890. [Missouri Historical Society, St. Louis, Photographs and Prints Collection, N27617]

Theodore Carl Link is best known as the architect of St. Louis’s Union Station, but if he…

Lewis Linn. [Library of Congress, Prints and Photographs Division, LC-DIG-pga-06434]

A frontier doctor, Jacksonian Democrat, and US senator, Lewis F. Linn has been called both…

Isidor Loeb. [State Historical Society of Missouri Photographs, 1896–2010, P0137-12873]

Isidor Loeb, a longtime Missouri educator and authority on state government and taxation,…

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Regis (Registre) Loisel was born near Montreal, Canada, in about 1773, and at an early age…

Edward V. Long (left) at the inauguration of Missouri governor Warren E. Hearnes, 1965. [State Historical Society of Missouri, Gerald R. Massie Photograph Collection, P0016-045]

Edward V. Long was born on July 18, 1908, in Lincoln County, Missouri. He received his…

John B. C. Lucas. [Missouri Historical Society, St. Louis, Photographs and Prints Collection, N29998]

When John B. C. Lucas died in St. Louis in 1842 at the age of eighty-four, his obituary described him as “…

This watercolor rendering of “Plan de Luzieres” is thought to show the French ancestral home of Pierre-Charles Delassus de Luzières. [Missouri Historical Society, St. Louis, X08600]

Pierre-Charles Delassus de Luzières played an important role in the history of Upper Louisiana during the…