John Flynn (minister) of the Aerial Medical Service was in 1928 from Cloncurry, Queensland. A museum commemorating the founding of the Royal Flying Doctor Service is located at John Flynn Place in Cloncurry. Flynn married the secretary of the AIM, Jean Blanch Baird, on 7 May 1932 at the Presbyterian Church in Ashfield, Sydney. He was 51 years old and the marriage reportedly came as a surprise even to his close friends. He retired and died in Sydney on 5 May 1951. He was 70 years old. He was cremated and his remains were placed under a large boulder from the Devils Marbles.
John Flynn (Irish politician) re-joined the Fianna Fáil party. During a 1952 Dáil debate, after John A. Costello had said "I made no reference to an Adoption of Children Bill", Oliver J. Flanagan quipped "Deputy Flynn would be more qualified to do that". Flynn, who was not in the chamber at the time, interpreted this as an insulting innuendo, and later punched Flanagan in the Dáil restaurant. The Dáil Committee on Procedure and Privilege condemned the conduct of both TDs. Flynn was re-elected a Fianna Fáil TD at the 1954 general election. He stood as a Fianna Fáil candidate at the 1957 general election