Just by chance - does anyone have a lodger on their 1851 census by the name of Robert Williams?
Missing from 'home' in Waterfall Row Ebbw Vale but is known to have spent time in lodgings in Pontypool prior
to his time in Monmouth debtors' prison in 1841. He is believed to have been a travelling surgeon. Age over 36 poss. about 45 - 50.

Olwyn
Worcester