Hugh Mackay was the son of John Mackay and of Mary Mackay (nee Falla), of Morrinsville

Barrass, M.B. (2001- 2008). Web site: Air of Authority - A History of RAF Organisation. "Squadrons numbered in the 400 series were technically units of the RCAF, RAAF and RNZAF, but their members were placed under the operational control of the RAF and are usually considered to be part of the RAF's organisational structure". URL: http://www.rafweb.org/Sqn485-490.htm

Transcriptions of Mackay's diaries and letters are held at: Royal New Zealand Air Force Museum, Wigram, Christchurch, New Zealand; Morrinsville Library, Morrinsville, New Zealand and Library of Congress, Washington, DC, USA. Biographical material, some flight log and additional photocopied images. AWMM