I have a James William or William James Abbott b Hampstead c 1822/1823 who migrated to Australia prior to 1853 when he married. In 1902 his family gavehim a bible for his birthday enscribed to Mr J Abbott on his birthday April 1902.
I have been unable to trace him under either name, this date corresponds roughly with the information on his grave.
He is my Great Great Grandfather and to date this is the only information we have been able to discover. He named his house in Australia "Hampstead" because that is where he was born or so the story went.
Does his name and DOB fit in with any of your "missing" ancestors?