no less a personage than MG Benjamin "THE BEAST" Butler wrote a letter to Sec. Stanton, which laid out a plan to place the freed slaves into a system of "permanent,forced, voluntary labor under military discipline" for a life-long period of servitude. butler said that "darkies are well-suited by nature for servitude under the lash". (fyi, the original of butler's letter is on public display at the New Orleans African-American Museum.)
free dixie,sw
There is also overwhelming evidence that the elites of the north, that owned slaves, did NOT keep their slaves, despite the fact that the war was won.
Now ... what were you saying?
That's it? That's your evidence? A letter from a general outlining a plan? Pray tell, what was Stanton's response? Since the slaves were not kept under permanent military discipline, we can only conclude that Butler's letter was ignored and did not become government policy.