I have some good quality photos of Sunderlands mainly official one from the War years. No 461 and 10 squadrons (RAF and RAAF). Some good movie footage as well, lists of "missing" crews and next of kin. Despite recognising relatives in the photos, there is no reference in log books at all. Apart from Certificate of Qualification dated 16.3.40 Sunderland D. & N.
(Just pulled out a pic of Sunderland HY G 53)