[2] During World War I, Oldfield served with the army in the first Australian Imperial Force as a Corporal in the 15th Field Ambulance.

[3] At the conclusion of the war he was selected to be part of the Australian Imperial Forces cricket team which played 28 first-class matches in Britain, South Africa and Australia between May 1919 and February 1920.

[4] He had injured himself on the passage to the UK in 1921, giving Carter the chance to restore his position, although Oldfield replaced him for the last two Tests.

[4] He was dropped for several matches over the next few years, but established himself as Australia's automatic selection for wicket-keeper in the 1924–25 Ashes series against England.

[6] A cricket oval in the Sydney suburb of Killara, where he lived later in life, is named in Oldfield's honour.