 John L. Williams, of our company, jumped up, embraced me, and the boys pulled us both down, as the enemy had opened a pretty lively fire from their second line by this time.We unfurled the flag and found it belonged to the 7th New York Heavy Artillery.Involved with his regiment in the June and July preparations for the mine placement and explosion at Petersburg, but not the ensuing Battle of the Crater (July 30), Monaghan and his fellow 48th Pennsylvanians next fought with Confederates in the Battle of Poplar Springs Church (September 30–October 2), and were then reassigned to the occupation of Fort Sedgwick from early December 1864 through April 1, 1865.