[1] Born in Philadelphia, Pennsylvania on August 24, 1948, O'Hanlon was a 1970 graduate of Villanova University, where he played college basketball, including during a 1970 NCAA Tournament basketball game against Saint Bonaventure in which Bob Lanier was tripped up and injured in a collision with Chris Ford.
He was the only Floridians player whose surname on the back of his jersey didn't need to be embellished with an O' prefix in a publicity stunt for the first game of a Saint Patrick's Day doubleheader versus the Utah Stars at Madison Square Garden in 1971.
[3] O'Hanlon played in the Eastern Basketball Association for the Trenton / Hamilton Pat Pavers and Cherry Hill Pros from 1971 to 1975.
[5] O'Hanlon was appointed to succeed John Leone as the 21st head coach in Lafayette Leopards men's basketball history on March 13, 1995.
[7] His final game was an 82–81 overtime home loss to Bucknell at Kirby Sports Center in the Patriot League tournament first round on March 1.