Hopefully, the marriage certificate would answer the question of Lizzie WHITTINGTON's father.

? (might confuse the issue...)

1881 Wales Census, Monmouth District Workhouse

Samuel WHITTINGTON - age 6 - born Yorkshire
Elizabeth WHITTINGTON age 4 - born Mon. Chepstow

1901 Census, Lancashire, District 6

John DOBBS - Coalminer Hewer, born Coleford,
Caroline DOBBS - 48 - born Glos. Whitecroft
Samuel WHITTINGTON - age 27, (Stepson) born Glos. Whitecroft
William MORGAN - 19 (Stepson) - born Glamorgan, Llwynypia
Thomas MORGAN - 15 - born Glamorgan, Pontypridd

1891 Census, Lancashire, Atherton

Caroline MORGAN - Widow, 37, Living on own means, born Glos. West Dean
Samuel WITHINGTON - age 16 - born ditto
3 Sons (MORGAN) - William 9, John 7, Thomas 5 (all born in Glamorgan, Toney ? - Ogmore - Pontypridd
+ John DOBBS, Lodger age 25, Coalminer, West Dean