Harrison H. Jeffords was the colonel of the 4th Michigan Volunteer Infantry Regiment in the Union Army of the Potomac during the American Civil War. He was noted for his heroism on July 2, 1863 during the Battle of Gettysburg, in which he gave his life while protecting the United States flag.
Jeffords was born in Michigan and educated in the common schools. A practicing lawyer during the outbreak of the Civil War, he enlisted in the 4th Michigan Volunteer Infantry and became captain of Company C. He later rose to the command of the regiment as its colonel. He saw action in several of the major battles in the Eastern Theater while serving in the Army of the Potomac.
Source: Wikipedia