Hi Sue and Trish
Thanks for your responses. Yes Trish, I know what you mean about knowing what to say. I've just rung a D Rushworth from the white pages (it transpires that Gwen and William had a little boy called Dennis when they went). Anyway, this chap wasn't the one (he was called Douglas) but he was very chatty. Turned out his parents had emigrated from Leeds and his father was called William Vause Rushworth. Talk about so near yet so far.
Still, I'll keep trying and let you know if and when I come up with anything.
Busybod