American Civil Rights Movement -- Encyclopedia Britannica
http://www.britannica.com/EBchecked/topic/119368/American-civil-rights-movement
The Encyclopedia Britannica article about the American Civil Rights movement, during which this novel takes place.
Birmingham Church Bombing
http://www.history.com/topics/black-history/birmingham-church-bombing
History.com's detailed description of the real church bombing that is depicted at the end of the novel.
Watsons Go to Birmingham Movie Page
http://www.hallmarkchannel.com/the-watsons-go-to-birmingham
The Hallmark Channel's page about the TV movie version of The Watsons Go to Birmingham.
Christopher Paul Curtis
http://www.randomhouse.com/features/christopherpaulcurtis/
The RandomHouse page for author Christopher Paul Curtis.