Hello Marlene,
you have clues to Schlee, from where they may come.
I investigate just the family of Schlee in Mecklenburg-Strelitz and of the Uckermark.
They were about 1740 off in Hildebrandshagen sat custodies. They came from Gudendorf (Gaudendorf) and came over Feldberg after Hildebrandshagen.
Peter Woddow