Hi
Please accept my apologises for not replying to your post sooner, sadly my father was ill at the time and passed away on the 26th December so i havent been doing any research. From memory i found a Sarah Bowker widow residing with John and Jane and there was also a william Bowker aged 18. I think i did find that her husband was Samuel Bowker. If jane and william are brother and sister, then we must be distantly related as she would have been my gt gt grandmother. I have subcription for find my past so next week when i have more time i will do some delving and see if i can find anything new for you.
Do you have any further info about the Bowkers, could you scan a copy of the marriage certificate as it would be nice to see their hand writing or were they illiterate?
Look forward to hearing from you
Regards
Jackie