Dear Lynne
I came across your post after searching for details about Collingwood Street. I'm afraid I don't have any details about your relatives at present, but I was born in Collingwood street in the 1960s, leaving in 1968 when the area was demolished. My parents had lived there for some years before that, and my grandparents in the same street before them for some years. I will ask my mam if she has any knowledge of your relatives. She has an incredible memory and you never know, her parents may have lived in the street at the same time. Birkenhead was a very close knit town at the time.
Best wishes
Simon