[Brian]

Thanks for the input, guys.

The Bf110 crashed near Ennigerloh, which is about 25km north-east of Hamm, so the possibility it was the Wellington from 37 Squadron (according to Martin's list).

I'll order a copy of 37's ORB for July 1940 and see if we can locate it. I'll let you know asap.

Thanks again
Brian