"Douglass saw Robert E. Lee and efforts to canonize him after his death as being emblematic of this kind of historical whitewashing," the family wrote to Newsweek.
"We don't want people to think that they can hide behind Robert E. Lee's name for these senseless acts of violence."
A statue of Robert E. Lee is at the center of the unrest in Charlottesville. It should be in a museum, says Bertram Hayes-Davis.
The seventh president was a populist, a slaveholder and a very unstable man.
Texas education officials have suggested slavery be considered a side issue when teaching the Civil War.
A Civil War descendant speaks out on the battle flag: "It should be put in its proper place."
The US is fighting al-Qaida but so too are the Iranian-backed Houthis who have seized the balance of power