He enlisted in the Royal Australian Navy in 1941 and served as a seaman during World War II.

In 1946 he established Murray Hill & Co., real estate agents, with offices in Grenfell Street.

[1] In 1972 after the alleged murder of University of Adelaide law lecturer Dr George Duncan at a known gay beat at the hands of police officers, and the significant public outrage that followed, Hill proceeded to introduce a private member's bill, with implicit support from the Labor Party, on 26 July 1972 to amend the Criminal Law Consolidation Act that criminalised homosexuality, thus being the first serious attempt to decriminalise homosexuality in Australia.

Labor member Peter Duncan went further however when, following an unsuccessful attempt to strengthen Hill's bill in 1973, introduced on 27 August 1975 an unaltered bill to the parliament, which was defeated twice and then reintroduced a third time before passing, making South Australia the first Australian State to fully decriminalise homosexuality.

His son, Robert Hill, was a federal MP and Minister for Defence.