Hi John
I am sorry I don't have any Christian names for the Yellops which is frustrating, it seemed to be around that period everyone called each other more formally. I do have the address that I mentioned - Avondale, Skeyton Road, North Walsham, which I don't think is that far from Lowestoff, if I am right in thinking that's in Suffolk, I'm not well up on the area as I live in Lancashire. However I didn't know that the Yellops had a daughter called Marjorie until David verifed my photo.
Do you have a photo of your Aunt Marjorie as I have a photo of who I think could be Mr and Mrs Yellop with Marjorie, I found it recently. I shall get it onto here shortly and then maybe match it up.
Regards
Pat