1886 Marriage is on FreeREG, Susan does not name a Father.
Says she is 30

Likely Bapt
03 Sep 1848 Holkham , Mother ANN
1851 Susan is with her Grandparents;
John Spooner 56
Mitchell Spooner 45
Susan Nann 2
(1861 also)
Ignore Trees that have Ann Manns Parents as James Mann and Ann Able.
ANN Mann was baptised 17 Nov 1828 to EDMUND/MITCHELL Mann
Mitchell SANDFORD/Edward MANN married 4 Oct 1825
MITCHELL Mann, Widow, remarried 25 Oct 1844 to John SPOONER
(boy another confusing one as names her Father as Thomas BUTTERS!)
Ok so looks like she was illeg also as;
Marriage;
Jemima SANDFORD
Thomas BUTTERS married 29 Jul 1817
1861 Census we have;
Jamima Butters 90
Susan Mann 21 Granddaughter
Florence A Mann 1
Florence Ann MANN was bapt 23 Feb 1870 Mother SUSAN
Mitchell SANDFORD bapt 23 Jan 1806, Mother JEMIMA a singlewoman
All above on FreeREG in Holkham.
Trish
