Slocum Massacre in Texas and "Americans Forgotten Mass Lynching" in Arkansas

A couple articles about white attacks on African Americans in the period in which the Arlington Confederate Monument went up.

http://tpr.org/post/should-texas-remember-or-forget-slocum-massacre#stream/0

http://www.thedailybeast.com/articles/2015/02/16/america-s-forgotten-mass-lynching-when-237-people-were-murdered-in-arkansas.html