For Damke there are 42 on Yasni with different names.
Among the most common last names on Yasni Damke is on position 4485.
There could be a word-formation, which are (che dam +) of Dammche, are frequent family names that have the same reduction are: Franke, Fenske, Butzge / Butzke etc.
(Sent from: Ciro Damke:cdamke@hotmail.com)