Hello Kurt Boldt,
I've just started my family search. Using google.de I found your adress.
One of my ggrandmothers was
* 13.Jul.1886 in Ernsthöhe, Kreis Neustettin,+ 30.Aug.1931 in Neustettin, Kreis Neustettin.
oo Hermann Karl Theodor Quandt, * 20.Jan.1883 in Hasendanz
had 8 children, one of them was my grandfather Paul Quandt.
I don't know anything about the ancestors of Anna Engfer.
And I don't know how far Sparsee is from Ernsthöhe or Gramenz (where the Quandt-Family -my ggrandparents- lived for some time).
If my ggrandmother could belong to your family, please let me know.