Coombs was born on 30 May 1941 in the Victorian town of
Swan Hill, to Cecil Coombs and Rosie Clayton. After losing his mother at age five, he and his four siblings lived with relatives in the New South Wales town of
Balranald. He grew up in rural Victoria in a large family. He became a paraplegic at the age of 12 when he was accidentally shot in the back while out shooting rabbits. Outside of sport, Coombs worked for the Victorian Department of Human Services until 2000. During his career with the Health Services he established the Koori Hospital Liaison Officer program, was the coordinator of the Koori Drug and Alcohol Program and was also Manager of the Koori Health Unit. One of Coombs' daughters, Rose Falla, is the first Aboriginal magistrate in Victoria. His other daughter, Janine, is the Deputy Chair of
Barengi Gadjin Land Council. Coombs died on 5 October 2023, at age 82. ==Sporting career==