Papers relating to his military career, 1922, [1948], 1950, including letter from Maj Gen W Robb relating to Brown's retirement from King's Own Yorkshire Light Infantry, [1948]; two letters of thanks and congratulation from Gen Sir Allan Francis John Harding, Commander-in-Chief, Far East Land Forces, 1950; two photographs of Brown in Malaya during Operation NAWAB, [1947-1951], one with Harding, the other in the jungle near Guron.

Thirty one captioned photographs of RAF Tebrau, Malaya, 1945; two typescript essays, written by Allwood in 1950, on improving bombing accuracy, and the advantages and disadvantages of the New Trade Structure from the airman's point of view.