Here's a quick summary, as we currently know it ...
Edward BEAUCHAMP, who is my g-g-g-grandfather in law(!), born about 1800 in Eynsham. He married Ann Andrews in 1823. They had six children, four in Eynsham, two in Abingdon. In 1851, he was a Boatman in Oxford. In 1881, he was "formerly a boatman from Eynsham". We can't find Edward or Ann in 1861 or 1871, but we know he died in 1882 and she died in 1878 in Oxford.
Of his children, Fanny BEAUCHAMP married George ALLEN in 1851. In 1861 she was given as a bargeman's wife, living at Little Marlow with her children. George hasn't been found (yet!). In 1871 they are both at the Lock House, Culham. We've seen pictures of this around this time. Also in the house was their son George was a "Transshifter of goods" and George's brother William was a boat builder from Abingdon. We believe George (the elder) had three wives, of which Fanny was the middle one.
Another child, Edward BEAUCHAMP, born 1831, married Hannah SKINNER in 1876, and was a boatman living at Upper Fisher Row, Oxford. In 1881 he was on a Barge at Abingdon Bridge, Culham with his wife. Also on that boat were Abel and William LAMBSDEN, given as servants, but we believe they were Hannah's children by her first marriage.
The BEAUCHAMPs and SKINNERs were next door neighbours in the 1851 census.
There's probably a bit more still, but that will do for a start.
(Incidentally, I couldn't get to your website yesterday. Is it still there?)
Thanks,
Tony