Waterhouse's father, Robbie Waterhouse and grandfather William "Bill" Waterhouse are also bookmakers.
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In 2001, Waterhouse’s father, Robbie Waterhouse, asked him if he would help out at Rosehill racecourse, which Waterhouse enjoyed.
Robbie Williams | Robbie Robertson | Robbie Coltrane | John William Waterhouse | Robbie Mustoe | Robbie McEwen | Robbie McIntosh | Robbie Gee | Robbie Francevic | Robbie Fowler | Robbie Findley | Robbie E | Robbie Deans | Robbie Buck | Jaime Robbie Reyne | Ellis Waterhouse | Robbie Ross | Robbie Nevil | Robbie Hummel | Robbie Fulks | Keith Waterhouse | Bill Waterhouse | Tom Waterhouse | Robbie Waterhouse | Robbie Seay Band | Robbie Robinson | Robbie Rivera | Robbie O'Connell | Robbie Lawson | Robbie Knievel |