Are you searching for information about a person, well-known or not?
Start with these resources:
Fox Hunt 2.0
Fox Hunt locates information about a person in books, movies, articles and more. It is a good starting point.
Searching the person's name and "biography" will help focus your results.
Reference and books/ebooks are good content type limits to use.
Library subject guides have discipline specific databases and reference sources to search for information on important individuals in a field.
Particular Disciplines and Industries