Rattling bones

My cousin has been doing a bit of digging about my Nan's pre-war status, and has sent me a copy of the 1939 electoral register (which I've already seen). The thing is that data was collected in 1939, so my info is more up-to-date. She's seeing her mum tonight and is not going to tell her anything about what I've told her, but she is going to do some fishing. My nan was a favourite aunt of my cousin's, so I don't suppose she'd be none too happy when my info proves to be right.