I'll be glad to. The University of Virginia census browser for 1860. Here is the Link. Do the math yourself.
From a moral perspective, do you really think the difference between 80,000 and 300,000 is significant?
From a factual perspective don't you think there is quite a difference between 80,000, which is approximately the total number of slave owners in all the Union states, and 300,000 which Baldwin claims is the total number of slave owners in Union ranks? Or do facts mean absolutely nothing to you?
Yes, that's quite a discrepancy. I wonder where he got his number? Still, to make the history come out the way everyone claims, that number should still be zero.
remind him that almost 25% of all slave owners in South Carolina were black themselves
it might explain why so many blacks fought or the confederacy
http://americancivilwar.com/authors/black_slaveowners.htm
http://www.kon.org/urc/v4/tikhomirova.html