It looks like his birth may have been registered as George William TOMKINGS, Dec qtr 1876, Camberwell, 1d 835
Baptisms
Greenwich East Christ Church
1874 Jul 23, Amelia Caroline, d/o George & Sophia TOMKINS, 7 Alpha Place, Blacksmith, born May 10
Peckham St Luke
1879 Jan 31, George William, s/o George & Sophia TOMKINS, 3a Branch Buildings, Sailor
1879 Jan 31, Ellen, d/o George & Sophia TOMKINS, 3a Branch Buildings, Sailor
1881 Apr 29, John Henry, s/o George & Sophia TOMKINGS, 5 Diamond Street, Smith - census address in 1881
George TOMKINGS married Sophia BEANEY at St John's Waterloo Rd on 3 Jun 1876.
Ian C