Sources:

De Lee, Nigel. “DOWNWARD, PETER ALDCROFT (ORAL HISTORY).” Imperial War Museums, 22 Nov. 1985, www.iwm.org.uk/collections/item/object/80008945.
Mackowiak, Robert C., and Mark Meaton / 656 Squadron Association. “A T C Brown.” 14 April 2020.
Hailes, Major J. M. H. “Air O.P. in Korea in a Static War.” Journal of the Royal Artillery, vol. LXXXI, no. 3, July 1954, pp. 185–190.
The Life of a Regiment: History of the Gordon Highlanders. Vol. 6. 1974.
The Tiger and Sphinx, Regimental Journal of the Gordon Highlanders. 1948–1960.
United Kingdom. War Diaries - 2nd Battalion, Gordon Highlanders. War Department, 1944.
Warner, Guy. First in the Field: 651 Squadron Army Air Corps. Pen and Sword Aviation, First Edition, 1 Dec. 2011.

With immense thanks to Bert Innes at the Gordon Highlanders Museum, and Mark Meaton at the Army Air Corps Museum for their time and attention in providing source documents and photographs.