I also noticed during my research that some "Israels" and "Sarahs"
had been removed, others not. The answer why this is so is relatively
simple. There had to be a reason to change the name again. In
some cases survivors requested the change of name, in other
cases descendants asked for it (like in the case of my family).
And, as I was told in one Standesamt, it had happened that the
chief of the Standesamt had given the order to do it.
David Seldner, Karlsruhe, Germany