186th New York Infantry Regiment
The companies of the regiment were mustered in from September 5, 1864, to September 29, 1864. The soldiers in the regiment were some of the first soldiers to get inside of enemy fortifications in the Siege of Petersburg on April 2, 1865, and it helped to capture Fort Mahone. The regiment fought in the Battle of Boydton Plank Road from October 27, 1864 to October 28, 1864. The regiment fought in the Battle of Fort Stedman on March 25, 1865. The regiment fought in the Appomattox Campaign from March 28, 1865 to April 9, 1865. The regiment was mustered out on June 2, 1865. When the regiment was discharged, the soldiers were recruited to the 79th New York Infantry Regiment.