I think Norman was born in 1898. There's a birth reg for him ~
Norman Wallace Williams Dec quarter ,1898 Wrexham v 11b p 240
Here he is with his parents in 1901
Hill Street, Cefn
RG13/5218/47/21
William Williams, 30, ? collier hewer (from line above)
Dorothy, 30
Mary E, 10
Willie, 7
Geo A, 5
Norman W, 3
David, 3 mths
All born Cefn
gnu