Maggie Williams (nee Hughes) was my grandmother (Catherine Jones) sister and I know that she had Daisy in 1934, Joan in 1936 and a George in 1938. We do know that Daisy married someone in the forces and moved to the Toronto Canada area to live. I have 1 aunt who we think may have still kept in touch with Daisy's family for a while so I will get in touch with her and get back to you if I have any more info. If your clients are decendants of Joan or George I would love to hear from them as I have done quite a lot of research on their mothers maternal family tree in Wales going back to 1805. Hope all this is of help to you.