Royal Naval Air Service/RAF pilot's flying log book, 1918-1924; three RAF pilot's flying log books, 1924-1926, 1934-1936 and 1937-1946. Four photograph albums, with many captioned photographs of Lynch's service in Turkey and southern Russia, 1919, and Iraq, 1931-1934, also 51 photographic negatives, mostly of southern Russia, 1919. Personal papers and photographs,1917-1946, including printed RAF certificate for the completion of a course in 'Aerial gunnery and bombing, Eastchurch, Kent, 1924, congratulatory letter to Lynch, concerning a successful air display, from AVM Cyril Louis Norton Newall, Air Officer Commanding Wessex Bombing Area, 1931, and printed service history, compiled by Lynch's son, 1994.