« Reply #29 on: Wednesday 14 July 21 22:22 BST (UK) »
I think she must be connected to them in some way, otherwise, why should she be there. Whether it's via family or friendship is difficult to say, but like you say it's something to go on. Have you tried DNA?
Hopefully family, as friends of ancestors do not help get you back further, but even so it is good to see they witnessed another marriage. Sarah's eldest son Matthew Coombs had married just a month before in July 1835 and her and her 2nd husband James witnessed the wedding.
The Wm Smith to Anne Jenkins marriage was August 1835 so 2 years before civil reg, and I did find a few Smith births with mmn Jenkins 1837-1840 in the Marylebone area in the new revised GRO index which give mmn from July 1837 onwards but further research has them to a different couple.
DNA seems to be a good step as it could help me break through this barrier. Not sure when Sarah wed her first husband George Coombs, who I descend from, I know he was originally from Dorset. If they did marry it is 99.9% certain it was not in London. That could be a clue to Sarah's origin, she may have been from down Dorset way herself.
An 1810 marriage in Axminster is a likely one but she was a widow, unless she was a very young widow as she was born 1790/1791.
Researching:
LONDON, Coombs, Roberts, Auber, Helsdon, Fradine, Morin, Goodacre
DORSET Coombs, Munday
NORFOLK Helsdon, Riches, Harbord, Budery
KENT Roberts, Goodacre
SUSSEX Walder, Boniface, Dinnage, Standen, Lee, Botten, Wickham, Jupp
SUFFOLK Titshall, Frost, Fairweather, Mayhew, Archer, Eade, Scarfe
DURHAM Stewart, Musgrave, Wilson, Forster
SCOTLAND Stewart in Selkirk
USA Musgrave, Saix
ESSEX Cornwell, Stock, Quilter, Lawrence, Whale, Clift
OXON Edgington, Smith, Inkpen, Snell, Batten, Brain