The standard three war medals were colloquially referred to as Pip, Squeak and Wilfred. They were a bronze star, a gilded circular Victory medal, and a silver medal with the king's head on one side (George V).
If those were the three medals, then I'm sorry to say that the chance of them still existing is rather low. All through the 1950's these were appearing almost every weekend at the big secondhand market in our city's east end. Dad would pay four shillings for the set, put the two base metal ones in the bin, and the silver one into a box with lots of other silver scrap, to go to a bullion dealer when it had all reached a decent quantity. The medal was about the size of a five-shilling piece, so it melted for just about that.