Sarah left a will, found under the name Godsinger.
England & Wales, Prerogative Court of Canterbury Wills, 1384-1858 for Sarah Godsinger
PROB 11: Will Registers
1855-1859
Piece 2240: Vol. 16, Quire Numbers 751-800 (1856)
I can make out some of her granddaughters names: Elizabeth Sarah Bragg Martin, Harriett Bragg Martin, maybe a Martha..... it's in that fancy lawyer writing where it is hard to decide whether it is indeed written in English or not, (if you stare at a word long enough, it is in English), but my eyes aren't up to the task.
It won't help in the quest for parents names, but just thought I'd point out it's existence.