Hi. I have come across this thread by google.
I am researching the son of Mary Jane Oldfied who was born before her marriage to George Vaughn Davis.
1891 She is with her sons family
Address: 12, Besley Street, Streatham
1881 Address: 4, Colmer Rd, Streatham
She is with son Phillip
1871 She is with her parents described as married and using the name Davis but her son Phillip has reverted to Oldfield
Address: Cornwall Street, Stoke Damerel, Devonport
1861 Address: 6, Fellowes Place, Stoke Damerel, Devonport
DAVIS, Philip is a visitor to his grandparents
George and Mary are at Wilton Place, Stoke Damerel, Devonport
The marriage is
Marriages Mar 1855 as you know
Davis George Vaughn Stoke D 5b 535
Oldfield Mary Jane Stoke D. 5b 535
Phillip was born c 1851 after the census
1851 Address: Fore Street, Kingsbridge with her parents and siblings.
I then found a second marriage for George

??
Marriages Mar 1864
Bartlett Eliza Ann E Stonehouse 5b 570
Burgoyne John Stoke D 5b 570
Clatworthy Elizabeth Peneluna Stoke D 5b 570
Davis George Vaughan Stoke D. 5b 570
Williams Ann Stoke D 5b 570
Did they divorce or was it bigamy? I have not found George after 1861 census as yet and wondered if you had found anything?
LK