If you add a link to a profile in your question that will help others, even if the profile is not Thomas.
That said, start by finding out as much as you can about those you do know. Not just birth/death but also the great collection of information from the census. Look at siblings, that might give you some clues.
From an existing profile, pick the Research pulldown menu under the Name-xxx menu, provide your wikitree credentials if asked, then search a site, such as FamilySearch.