 Complete the following phrase:  Randall enlisted as a private in the 4th Pennsylvania Volunteer Infantry in the April 1861. He then accepted appointment to the 4th U.S. Infantry as second lieutet in October. He served in New York and Washington, D.C., and in the field with the Army of the Potomac. He was a second lieutet at the Siege of Yorktown, Battle of Gaines Mill, 