Thanks for the quick response. It would be very difficult to do both, but not impossible depending on the state of his marriage at this time. The bankruptcy was in Hill End and it states he was temporarily in Sandhurst in 1873. Who knows why though?
Anyway, do you have any other ideas of how I can find this William? Have you any records of any other William's both in about 1843/1844 that might fit? I have studied about 30/40 William's and could only find one who fits for 1843/1844.
The other one I thought might be OK was William Curnow, born 1851-1942, son of Michael Curnow and Mary Amelia Edwards who married Agnes Jane Shearman. He is VERY young though to be married to Ann and to run a hotel. He is born in Towednack, which may or may not fit with the DNA.
Is going into the past through DNA and coming forward a viable option?