During the American Civil War , he served with the 32nd Wisconsin Volunteer Infantry Regiment and the 16th Wisconsin Volunteer Infantry Regiment of the Union Army .
Caldwell was born on June 20 , 1840 in Chautauqua County , New York .
During the American Civil War , Caldwell served with the 32nd Wisconsin Volunteer Infantry Regiment and the 16th Wisconsin Volunteer Infantry Regiment of the Union Army .
Caldwell was born on June 20 , 1840 in Chautauqua County , New York .