Dan Mason was born on February 9, 1857 in Syracuse, New York, USA as Dan Grassman. He was an actor and writer, known for The Janitor's Flirtation (1914), Dinkelspiel's Baby (1914) and The Janitor's Quiet Life (1913). He was married to Millie La Fonte. He died on July 6, 1929 in Baersville, New York.