[Merry]

The 1851 census shows these children for William:

Frances 12
Joseph 10
Louisa 7
William 3
?? 4 (female)
Florence 1m

And these fit:

WILKS, FRANCES mmn LEWIS
GRO Reference: 1839 S Quarter in THE CLIFTON UNION Volume 11 Page 261

WILKES, JOSEPH mmn WRENTMORE
GRO Reference: 1841 S Quarter in THE CLIFTON UNION Volume 11 Page 288

WILKES, LOUISA mmn LEWIS
GRO Reference: 1844 M Quarter in THE CLIFTON UNION Volume 11 Page 329

WILKES, WILLIAM HENRY mmn WRENTMORE
GRO Reference: 1848 D Quarter in THE CLIFTON UNION Volume 11 Page 291


WILKES, MARY ANN mmn WRINKMORE
GRO Reference: 1846 S Quarter in THE CLIFTON UNION Volume 11 Page 306

WILKS, FLORENCE CATHERINE NEALE WILSON mmn DEAR
GRO Reference: 1851 M Quarter in CLIFTON Volume 11 Page 326

So, further investigation needed to eliminate the Lewis children if possible.

There's a bap for Louisa which has her parents as William and Fanny, so there are either a lot of coincidences or something dodgy is happening! lol