https://www.brainpop.com/socialstudies/famoushistoricalfigures/frederickdouglass/

http://www.ducksters.com/history/civil_rights/frederick_douglass.php

http://mrnussbaum.com/african-americans/frederick_douglass/

http://www.socialstudiesforkids.com/articles/ushistory/frederickdouglass1.htm

https://kids.britannica.com/kids/article/Frederick-Douglass/353063

http://www.historyforkids.net/frederick-douglass.html