I am looking for any information on Hilda Wanda Klein, Rosa Klein or Fritz Klein who was a scientist. This Klein family came from the Wehlau - Allenberg area of East Prussia. Now known as Konigsburg Oblast. Their Mother was a Shulz from the same area. If anyone can help I would greatly appreciate it. The Schulz side of the family emigrated to the USA and one member was a Doctor Schulz who worked in a hospital in New York at one time.
Hilda Wanda was my grandmother and married Hermann Zimmermann in Allenberg before moving to South Africa to do mission work.