Leahy was the member of a hurling 'dynasty' in Tipperary. His older brother Johnny was a two-time All-Ireland-winning captain. His younger brothers, Mick and Tommy, also won All-Ireland medals.[citation needed]
In retirement from hurling Leahy became involved in coaching. He was chairman of the selection committee for eight All-Ireland victories for Tipperary between 1949 and 1965.[citation needed]