Roy Clifford Mudiman was born on 15 July 1920 at Belmore, New South Wales to Florence Elizabeth (nee Ross) and Ernest John Mudiman.

Mudiman enlisted in the 2nd Australian Imperial Force on 3 July 1940 at Paddington, New South Wales. He was assigned to the 2/20th Battalion in December 1941, serving in Malaya with this unit until the order to retreat to Singapore in 1942. On 10 February, Mudiman injured his hand and was taken to hospital at Alexandria to recover. After the fall of Singapore on 15 February 1942, he was made a prisoner of war of the Japanese.

In May 1942, Mudiman was drafted into a working party which was sent to Blakang Mati Island (now known as Sentosa) where the conditions were better than at Changi prisoner-of-war camp. He eventually returned to Changi in February 1943.

Having been allotted to ‘D Force’ in March 1943, Mudiman was then sent to work on the Burma-Thailand Railway, eventually working on Hell Fire Pass in July 1943 whilst suffering through several bouts of Malaria.

After the end of the war with the Japanese in August 1945, Mudiman remained quarantined in camp after an outbreak of Smallpox until September 1945. He then flew from Bangkok to Singapore, returning home from Singapore to Australia aboard the Moreton Bay. He arrived in Sydney on 2 November 1945.

Roy Clifford Mudiman married Winifred Grace Molloy at Windsor in 1947 and died on 20 May 2004 at Windsor, New South Wales.