I know that my Isaac Young (a blacksmith) married a FURBER and have found an Isaac & Jane on the 1841 census living in Gloucester with some of their children and have managed to trace them on the other census returns upto1871 (Isaac died in 1875) The returns state that both were born in Somerset, either Somerton or Langport.
Have managed to find a baptism for Isaac on the 26th January 1800 at Somerton as well as a marriage between an Isaac Young, blacksmith and a Joan Furber on the 13th August 1820 by banns at All Saints, Langport and the witnesses were Sarah Scott & John Franklin but have been unable to find a baptism for either Joan or Jane Furber, who according to the census returnswould have been born between 1802-1806.
Jane & Isaac had several children, born from 1820 - 1844, one of whom was an Elizabeth Franklyn (different spelling to the witness at the marriage of Isaac & Joan - but maybe same family) which makes me think that Joan and Jane are perhaps one and the same. The 3 eldest children were christened in Gloucester in March 1831 so they family moved from Somerset to Gloucester at some time.
Don't suppose you have a Jane or Joan in your family do you?