Found that on the 1871 census dau of David Foulkes is an Ellen now married to a Whitehouse and here is the marriage
1871
WHITEHOUSE Thomas FOLKES Ellen Dudley, St James Dudley Register Office 202/006/41
wonder if John is father in law of Ellen?
here is link to the clan!
http://bcconnections.tribalpages.com/tr ... =858908602