I've got a WWI Medal Card from the National Archives for a George Dwan, Joseph Dwan, Richard Dwan, John Dwan and Thomas Dwan. I purchased it to get my g-grandad's (George Charles Dwan). I don't know what details are contained on each, so if one of the names means anything to you, please let me know and I'll try to be of more use to you.
Best wishes,
Vicky