In 1855, he removed to Iowa, and established himself near the geographical centre of the State. The town of Redfield, Iowa received its name from him. He held several offices of trust in Dallas County, Iowa, and in 1860 was elected to the Iowa State Senate.[1]
On the outbreak of the Civil War he raised a company of which he was elected captain, and on the organization of a regiment, the 39th Iowa Volunteer Infantry Regiment, he was elected its lieutenant colonel. He continued in that post until his death. His regiment was in active service at the West, under Buel, Ulysses S. Grant, and William Tecumseh Sherman. When Allatoona Pass was attacked by French's Division of Hood's army, Col. Redfield, then garrisoning the town of Rome, Georgia, went forward with his command to defend the pass. While cheering on his men to resist the rebel attack, a ball pierced his heart and he fell dead. His remains were buried in a village near the battle-field. He left a widow and three children.[2]