https://www.ducksters.com/biography/
http://gws.ala.org/category/history-biography
http://www.americaslibrary.gov/
https://en.wikipedia.org/wiki/Main_Page
http://www.nga.gov/content/ngaweb/education/kids.html
http://www.si.edu/Kids
http://www.digitalhistory.uh.edu/