He was born in Peebles Twp. (subsequently Pittsburgh) on June 30, 1842, to James Schoonmaker and Mary Clark Stockton. James was a student at the Western University of Pennsylvania (now known as the University of Pittsburgh) when the American Civil War began and enlisted in a local company of recruits which was assigned to the 1st Maryland Cavalry, rising to the rank of lieutenant. During the next thirteen months, he proved himself repeatedly in battle and in command of his troops.[1]
At the Third Battle of Winchester, September 19, 1864, Schoonmaker led his troops in a dismounted charge against Confederate artillery in Fort Alabama (Star Fort). It was for this action he received the Medal of Honor on May 19, 1899. The Medal of Honor citation reads: "During the Battle of Star Fort, Virginia, at a critical period, gallantly led a cavalry charge against the left of the enemy's line of battle, drove the enemy out of his works, and captured many prisoners."[2]
After the war he made a fortune in coke around Pittsburgh and was on the board of directors at Mellon Bank. He married Alice Brown and Rebekah Cook and had three children: Gretchen Schoonmaker, William Schoonmaker, and James Martinus Schoonmaker Jr.[3] He died on October 11, 1927, in Pittsburgh.[4]
He is buried at Homewood Cemetery in Pittsburgh.
