How does the thirteenth amendment apply to descendants of slaves who were freed before 1860?

The descendants of slaves who were freed before 1860, and lived in the North as New Jersey on July 1862, when Congress moved to free the slaves by ping the Second Confiion Act it did not apply to them. The federal government's Emancipation Proclamation did not apply to them. To preserve the Union the government abolish slavery. Freeing the slaves became, in late 1862, a war measure to weaken the rebellion by destroying the economic base of its leadership cl.The Emancipation Proclamation, announced on September 22 and put into effect on January 1, 1863, freed slaves in territories not under Union control. As Union armies advanced south, more slaves were liberated until all of them in Confederate hands (over three million) were freed. Lincoln later said: "I never, in my life, felt more certain that I was doing right, than I do in signing this paper." The proclamation made the abolition of slavery in the rebel states an official war goal.