I came across a post from several years ago when you were developing a Lincoln database; my father flew Lancs and Lincs with 57 Sqn from 1945-48 and I have access to his log book.
I'm very interested in RE377 DX-D(og) and have an in-flight photo (which I could copy to you, if you wish...). I believe this aircraft was written-off following a wheels-up landing at Woodbridge, but if you have anything further, I'd be very keen to hear.
My father's log details many aircraft, some with only the single letter code, some with full serial numbers and I'd be pleased to share these if they might be useful to you.
KEY AERO AVIATION NEWS