Air Navigator's Flying Log Book covering his training in Ansons and Oxfords at No. 47 Air School (Course No. 7), Queenstown, South Africa (July 1943 - October 1943), and in Wellingtons at 76 Operational Training Unit (November 1943 – March 1944), covering his first tour of operations in Wellingtons with 104 Squadron in Italy (7 May 1944 – 3 October 1944), his second tour with the Balkan Air Force Communication Flight (18 October 1944 – 17 May 1945) in Wellingtons and also Baltimore, Anson, Argus, Expiditer and Dakotas, then after the war with 40 Squadron RAF (17 May 1945 – 14 December 1945) and 148 Squadron RAF (14 December 1945 – January 1946) in Liberators in Italy and Egypt. The log book contains 34 aerial photographs (May – September 1944) and a certificate naming his crew for returning the best photographs for the month of August 1944. Together with associated documents including a group photograph of D flight, No. 2 Squadron, No. 1 Initial Training Wing, June 1942 (A Cowan is seated second from the left in the front row), a photograph of a small group of airmen (Cowan is standing on the left), a ms letter (4pp, July 46) from a fellow crew member, Pete Rowe, about his release and mentioning the death of their mutual friend "Hancock", a 1945 Christmas card also from Rowe, a signed menu card for No. 7 Air Navigators' Course, Queenstown, 21 October 1943, with skull and cross bones drawn next to the names of those that were killed during the war, another signed menu card 3 July 1943, 6 examples of propaganda leaflets that they dropped over enemy territory, and a postcard showing 148 squadron’s badge.