Periodically search GoogleBooks for all your ancestors. If my British convict ancestor from 1764 can appear in a book discussing the penal system in 18th century England, then there’s a chance that others will as well as the site includes digital images of a variety of items, including county histories, regional directories, occupational directories, occupational publications, religious periodicals, etc. GoogleBooks does periodically update so consider adding it to your list of materials to take an occasional look at.
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