Jasper A. Maltby
Jasper Adalmorn Maltby was a general in the Union Army during the American Civil War. He participated in two important campaigns in the Western Theater, including the Vicksburg Campaign in 1863. A talented gunsmith, Maltby was the inventor of one of the first telescopic sights.
Maltby was born in 1826 in rural Kingsville, Ohio, where he was educated in the common schools. He participated in the Mexican War as a private in the 15th U.S. Infantry. He was wounded in action on September 20, 1847, during the Battle of Chapultepec. He was honorably discharged from the service on August 3, 1848, and settled in Chicago, Illinois. He subsequently moved to Galena, Illinois, and became a gunsmith, living in a room above the shop with his wife and son.
Source: Wikipedia