In 1932 Bill's son Les "Monty" Heidke also represented for the Kangaroos making Bill and Monty the second ever Australian father-son representative combination one week behind Sandy Pearce and his son Joe Pearce.
In 1932, Les "Monty" Heidke followed in his father's footsteps by representing the Kangaroos. This made Bill and Monty the first father-son pair to achieve this distinction, with Sandy Pearce and his son Joe Pearce being the only other duo to accomplish it a year later.