This might have been taken around Christmas time although the fire isn't blazing so maybe not. Most likely the venue was 99 Stanley Rd. Here are the names as far as I can remember.
1. Stan
2. Gladys/Margaret, Stan's wife
3. Kate, the matriarch
4. Wyn, Kate's daughter
5. Not sure, could be Marjory King, a close family friend
6. Joan, Kate's daughter and my mum
7. Doreen, Kate's daughter
8. Cedric, married to Doreen
9. Ada, married to Albert (Bert and later John to the family)
10. Gladys, Kate's daughter
11. Horace, distant cousin, nicknamed Nunk (does anyone know why?)
12. Marjory, Kate's daughter
13. Bill, married to Marjory
14. Monica, daughter to Marjory and Bill
15. Herbert, married to Sylvia
16. Sylvia, Kate's daughter
17. Tony, Marjory and Bill's son