Appleton's Cyclopedia of American Biography, edited by James
Grant Wilson, John Fiske and Stanley L. Klos. Six volumes, New York: D. Appleton
and Company, 1887-1889 and 1999. Virtualology.com warns that these 19th Century
biographies contain errors and bias. We rely on volunteers to edit the historic
biographies on a continual basis. If you would like to edit this biographyplease
submit a rewritten biography in text form.
If acceptable, the new biography will be published above the 19th Century
Appleton's Cyclopedia Biography citing the volunteer editor
Virtual American Biographies
Over 30,000 personalities
with thousands of 19th Century illustrations, signatures, and exceptional life
welcomes editing and additions to the
biographies. To become this site's editor or a contributor
or e-mail Virtualology here.
MERCIER, Louis Charles Antoine, French engineer, born in Melun in 1744: died in Rouen in 1812. He was the son of a director of the mint, entered the marine guards when scarcely fifteen years old, and was employed for several years in Canada and Martinique. When the war of American independence began he asked permission to serve as a volunteer, and, coming in 1776 to this country, was employed as an artillery officer, directing" the batteries during the siege of Savannah by Count d'Estaing in 1779. He was reinstated as major in the French army, and, after being employed for several months to rebuild the fortifications of the island of St. Eustache, returned again to the American continent in 1780 and took part under Lafayette in the Virginian campaign, being wounded at the head of his regiment at Yorktown. After the conclusion of peace in 1783 he was appointed director of the fortifications of Santo Domingo. He afterward became assistant commander of the artillery in the navy-yard of Brest, but during the reign of terror he came to Louisiana and was a professor of mathematics in New Orleans till 1803, when he was commissioned by the first consul to study the water-front of the colony, and forward plans for the protection of the coast. The cession of Louisiana to the United States brought the mission to an end, but Mercier had meanwhile become interested in it, and, having been left a small fortune by a relative, continued it at his own expense. He devoted five years to the exploration of the country as far north as Oregon, west to California, and east to Texas, sailed for 900 miles on Mississippi and Missouri rivers, made a thorough study of the hydrography of the country that is watered by the Lafourche, Atchafalaya, Black, and Washita rivers, and also took barometric levels along Perdicco river, the former boundary of Louisiana. He presented to the United States authorities in 1807 plans for the drainage of flooded lands in the delta of the Mississippi. Returning to France in 1808, he settled in Rouen. He published "Memoire sur les vapeurs de l'atmosphere le long du cours du Mississilsi" (Paris, 1808); "Carte du bassin du Mississipi" (1808) ; "Systame hydrographique de la Louisiane" (Rouen, 1809); " Carte du delta du Mississipi" (1810) ; "Etudes topographiques, geo-graphiques, hydrographiques, geologiques et geo-desiques sur la Louisiane" (1811) ; and "Tableau du climat de la Louisiane, et de son influence sur les Europoens et les Creoles" (1812).
This site and its contents are not affiliated, connected,
associated with or authorized by the individual, family,
friends, or trademarked entities utilizing any part or
the subject's entire name. Any official or affiliated
sites that are related to this subject will be hyper
linked below upon submission
and Evisum, Inc. review.
Please join us in our mission to incorporate America's Four United Republics discovery-based curriculum into the classroom of every primary and secondary school in the United States of America by July 2, 2026, the nation’s 250th birthday. , the United States of America: We The
People. Click Here