Hi Francesca,
I'm probably pretty right for my Kington BAYNHAMs - they have not been too hard to track down - I don't have them in 51 census, but I do in 41, 71, 81, 91, plus various hatchings matchings and dispatchings - though any extras never hurt of course...
They were plumbers, painters, glaziers, glass dealers, etc. in Bridge Street for much of the 1800's, so I have them in directories as well as census.
My g5-grandparents William BAYNHAM (b. Mansell Lacy) & Catherine GOODE (b. Yazor) moved to Pembridge in 1790s, then Kington in 1800s, with at least 2 of their 8 children (my branch stayed in the Yazor area - my biggest interest). The paint & glass business was continued by their son George, then later by his widow Susannah James LEWIS (a Kington girl).
William's sister Sarah is also my g5-grandmother (due to two 2nd cousins marrying in my ancestry) so I'm a BAYNHAM-BAYNHAM and naturally they are my favourite line.
My real mystery is William & Sarah's parents - Samuel BAYNHAM or BAINHAM, and Elizabeth WHO? - both buried at Mansell Lacy in 1773, but the backward trail currently ends with them. I must post my HEF trees on the general board when I get organised (if ever).
Cheers
Steve