Hi David, It was actually my dad that served on 275, he was sent to the USA with a few others to bring it back for conversion, served on it till it was delivered (safely) back to the USA so he'd have known your uncle. Unfortunately, he didn't talk about it except for telling me it was anchored off Gold beach, about a mile out, and they came ashore every night because it was too dangerous to stay aboard. He also heard the bombing of Caen from Gold. I've found the odd bit here and there including his application to join The Landing Craft Association with a list of places they were sent to. Anyway I'll E-Mail you, might not be today though, I have to dig it out and see what I have.
regards, Griff