Vicksburg and Gettysburg was the same week. You are correct. After that, it was downhill for the slaveholders and the hated democrats.
Sorry. I’m the wrong guy to spout this to.
Most Southerners didn’t’ own slaves. They were fighting because “Y’all still here.” Or for states rights. Once you got past the fine language of emancipation and union, the Yankees were fighting because the idea of a 10% tariff in New Orleans, Savannah and Charleston left them with a vision of grass growing in the deserted streets New York and Boston.
God save the South.