Career
Birkbeck received the Royal Aeronautical Club certificate Number. 3157 on 23 June 1916 to qualify as a pilot. He was appointed a temporary probationary second lieutenant on 4 March 1917.
He was appointed a flying officer in the Royal Flying Corps on 7 May 1917.
He was confirmed in his rank on 1 June 1917. He joined Number. 1 Squadron Reconstruction Finance Corporation on 10 June 1917.
He flew Nieuport fighter Number. B1582 to his first victory on 22 July 1917.
He used the same plane for two more wins in August.
He then switched to Nieuport Number. B6753 for his next six triumphs, all scored in October 1917. B6826, making him a double ace.
On 3 November 1917 he was appointed a flight commander with the temporary rank of captain.
Birkbeck left the front for England in February 1918. Birkbeck was transferred to the unemployed list on 23 May 1919, but was granted a short service commission on 8 June 1920, when he was promoted from flying officer to flight lieutenant, later amended to date from 12 May 1920.
Birkbeck later became shipbroker, and resided at Stack House, Oxted, until his death on 9 January 1938.
