Two typescript biographical pamphlets on William Harrison by his son, Roger L. Harrison:
(1) The Scientific papers of William John Harrison (1904-1969) Fellow of Clare College Cambridge (Kings Lynn 1993)
(2) Ethel Marianne Harvey Piper (1885-1968) and William John Harrison (1884-1969) Supplement no. 1 (1993)
Both pamphlets contain copies of the obituary of Harrison published in the Clare Association Annual as well as prints of the painting "Conversation Piece" by Terence Cuneo.