Jacob Ammen

Jacob Ammen (January 7, 1806 – February 6, 1894) was a college professor, civil engineer, and a general in the Union Army during the American Civil War. His younger brother, Daniel Ammen, was an admiral in the United States Navy.

Early life and career Ammen was born in Fincastle, Virginia, but at a young age, his parents moved to Georgetown, Ohio, where Ammen attended school. He was an 1831 honors graduate of the United States Military Academy, where he was an assistant professor for two terms, in addition to his duties as a second lieutenant in the 1st U.S. Artillery. From 1840 through 1843, he served as Chair of the Mathematics Department at Indiana University. He later taught again in Kentucky and Missouri, before moving in November 1855 to Ripley, Ohio, to work as a civil engineer.