21. Post war in September 1919, he relinquished his temporary rank of brigadier-general. 22. During this time he was promoted to the temporary ranks of colonel ( April 1945 ). 23. On 1 March 1915, he was appointed a GSO 1, retaining his temporary rank . 24. On 14 May 1917 Cunnell was appointed a flight commander with the temporary rank of captain. 25. Bell was appointed a flight commander with the temporary rank of captain on 9 April 1917. 26. On 1 January 1918 he was appointed a flight commander with the temporary rank of captain. 27. On 21 March 1917 Pickthorn was appointed a flight commander with the temporary rank of captain. 28. On 25 March 1918 Stewart was appointed a flight commander with the temporary rank of captain. 29. On 3 November 1917 he was appointed a flight commander with the temporary rank of captain. 30. Lewis was appointed a flight commander with the temporary rank of captain on 27 August 1917.