Charles Floyd (1782-1804) was the only casualty in the Lewis and Clark Expedition. Charles DeRudio (1832-1910) was an Italian aristocrat, would-be assassin of Napoleon III, and later a career U.S. Army officer who fought in the 7th U.S. Cavalry at the Battle of the Little Bighorn. Charles Albert Varnum (1849-1936) was the commander of the scouts in the Little Bighorn Campaign and received the Medal of Honor for his actions in a conflict following the Battle of Wounded Knee.