Let me be the first to flame. Had this happened to anyone recently (read as in this lifetime) I would see the point in returning it to it's rightful owner. As he bought the farm from his father in the 60's, this is closer to the slave reparations issue in the US. I see no logic in forcing an individual to make rearations for admittedly wrongful actions of a governing body and a policy long gone by.
The 60's were in this lifetime, at least for a great many of us.
Suppose your property is taken from you and given to another person. Then that other person "sells" it to his son (wink, wink). I'd say you're justified in reclaiming it.
The type of reparations that we should oppose are when one "group" takes from another "group" with no legal basis.
But this case is one of individuals making a claim to property their family owned. This is closer to fighting eminent domain abuse.