Kev,
I’ve lost the ‘plot’ a bit here, but if it is 56 Squadron related they have a Squadron Association http://www.56sqnfirebirds.org.uk/index.htm plus they have a small Squadron History Room at RAF Waddington. I worked with them on a squadron history story a few years back, and they were very helpful; a former squadron member is also heavily involved with Aviation Heritage Lincolnshire.
TO23: He’s looking for Camels: thus 39 HD Sqn, 44 HD Sqn, 61 Sqn or 152 Sqn.