- Member of College Class of 1865 (non-graduate)
- Member of Delta Phi fraternity
- Member of sophomore class crew and cricket teams
- Corporal in University Light Artillery
Harry Markoe was born in Philadelphia on December 15, 1846, the son of James Markoe and Sarah C. Fisher.
Markoe entered the University in 1861 as a freshman member of the College Class of 1865. Like his brother James Markoe, Jr., Class of 1863, he joined Delta Phi fraternity. He was also a member of the sophomore Boat Club and the sophomore cricket team, and a corporal in the University Light Infantry. Harry Markoe left the University during his senior year before receiving a degree. As an alumnus, Markoe continued to row in the University Barge Club for several years, serving as the club’s secretary in 1867.
After his college years, Harry Markoe became a stockbroker. He married Frances Eustis Caldwell. Markoe died at his home in Penllyn, Pennsylvania, on July 15, 1929.