Help:Searching for Information
If you have a surname you are researching, you can check the Surname Reference to see if one of the ancestor lines has that surname. You can also enter the surname into the search field in the sidebar.
If you are searching for a specific individual, then go ahead and enter the individual's name into the search field.
If you already know how you are connected to the family, then a great place to start is with the page of Sean Marvin Cox, where you can then easily find connected relatives.
Links to available source materials are provided on each individual and family page, though you may do well to check children, parents, spouses, etc. to see if some less direct source of information is available.