Franklin M. Rose was born around 1844 in Connecticut to Delight Rose. He grew up and attended school in Waterbury, Connecticut, and by the early 1860s, he was working as a mechanic. He enlisted in the Union army on June 10, 1862, and mustered in as a private in Company E of the 8th Connecticut Infantry later that day. The regiment took part in the Battle of Antietam, the Battle of Fredericksburg, the Battle of Cold Harbor, and the siege of Petersburg. He was killed in action in the Battle of Port Walthall Junction on May 7, 1864.