You can't look at the redress situation as a return for specific actions that someone else did to someone else a long time ago.
Like Nietszche pointed out in the genealogy of morals, you would have to keep going back and back and back to find the original causes. I add that you would also have to go forward into speculation to decide whether certain things had good results in later generations, persecution notwithstanding. It is impossible to quantify.
The general idea though is one of respect for people who have brought themselves out of hard situations, and help to those who have hard situations partly due to oppression (especially financial).
Those people who have recieved more than they were due, and there are many I know of personally, should kick down something.
For example the great-great-grandchildren of plantation owners, who have recieved inheritances, should donate to schools in the ghetto.
People who inherited land, in the best parts of california and elsewhere, should give a little something to schools on indian reservations.
It doesn't take a genius to figure out that that is only fair.
You hardline, greedy bastards who try to point out the problems involved should shut up. I'm not saying people have to give up their houses and lands and all their money.