Rifke Lowenthal

http://www.ics.uci.edu/~dan/genealogy/Krakow/Families/Hirschprung.html

Explanation of early trees format:

'??' to the left of a person's entry indicates significant uncertainty of the association of that person to the family.

Such uncertainty typically arises as to whether that person is a child of the listed parents, or

one of the listed parents is the true parent for that subfamily (as opposed to some other person with the same name)