Thomas J. McKean

Thomas Jefferson McKean (August 21, 1810 – April 19, 1870) was an American engineer, soldier, politician, and farmer. A West Point graduate, he fought in the United States Army during the Seminole Wars, in the Mexican–American War, and he served as a general in the Union Army during the American Civil War. He commanded the District of West Florida at the end of the Civil War in January 1865.

Born in Pennsylvania he became a civil engineer and served in the U.S. Army. After serving in the army, he returned to Pennsylvania to work as a civil engineer in 1834. He served in the military again during the Seminole Wars before moving to Iowa Territory in 1840. He was a delegate to Iowa's constitutional convention. He enlisted and served in the Mexican–American War. He served in various command roles in the Union Army during the Civil War. Afterwards he was elected mayor of Marion, Iowa.