[15] Whilst on the Western Front with his unit Captain Robb was recorded as an active and popular member of the 4th Battalion the Northumberland Fusiliers.

[17] After the war he decided to 'soldier on' and accepted a regular commission in the King's Own Yorkshire Light Infantry (KOYLI).

[23] An Army List of 1938 recorded that Robb was commanding the 2nd Battalion, North Staffordshire Regiment and that he had been in post since 12 April 1936, having been promoted to lieutenant colonel on 1 July 1933.

One of Robb's officers was Major William Donovan Stamer, who would later go on to become a major-general and Colonel of the North Staffordshire Regiment.

[26][27] In recognition of his performance during the retreat to Dunkirk and the evacuation of his brigade Colonel (Temporary Brigadier) William Robb was awarded the DSO.

[30] On 23 August 1943 Colonel (temporary brigadier) William Robb was granted the acting rank of major general.

[32] A popular military beach club in the Pembroke Army Garrison area was named after him - the Robb Lido (which was redeveloped as a commercial hotel complex overlooking St George's Bay).