Yes Arclite01, L9172 was my father's Blenheim IV. From 17 OTU at Upwood it broke up over South Wales on 12th June 1940. My father was the Observer and he and the WOp/AG were killed while the pilot survived. The pilot went on to fly Beaufighters, was shot down and made POW and died in the crash of a Dakota in France in 1946.
I go every year on the anniversary to a memorial to my father and the WOp/AG in the village where they crashed and I have met the WOp/AG's sister and the pilot's son. I shall be there on 12th June this year and for as many years as I can manage.