Hubert Dilger
Hubert Anton Casimir Dilger was a German immigrant to the United States who became a decorated artillerist in the Union Army during the American Civil War. He was noted as one of the finest artillerists in the Army of the Potomac, receiving the Medal of Honor for his valiant work at the 1863 Battle of Chancellorsville.
Dilger was born in Engen in the Black Forest region in Germany and educated in the Karlsruhe Military Academy. He served as a lieutenant in the Grand Dukes Horse Artillery at military posts in Gottesau, Karlsruhe, and Rastatt. He developed several innovative theories on artillery tactics and drill. When news came of the outbreak of the American Civil War, Dilger received a leave of absence and sailed to the United States.
Source: Wikipedia