On 12 March 1916, he became a temporary lieutenant colonel.
On 2 June 1918, Cunningham was promoted to temporary lieutenant colonel while he was assigned as such.
He was promoted to temporary lieutenant colonel on 8 October.
Brereton was promoted to temporary lieutenant colonel on November 1.
He was promoted to temporary lieutenant colonel on September 15, 1941 and to temporary colonel the next month.
On 26 July, he was promoted to temporary lieutenant colonel and assumed command of the battalion.
On 5 December 1916, as a temporary major, he was appointed wing commander and made a temporary lieutenant colonel.
By the end of the year he had been promoted to temporary lieutenant colonel.
He soon built a record as an excellent teacher, trainer and administrator of troops, ending the war as a temporary lieutenant colonel.
Walker was promoted to temporary lieutenant colonel on 15 July 1941.