I don't read Germand but I took a Germand-English Dictionary and translated the message. As far as I can tell there is no connection. Some of the names are the same but some are different. Maybe I don't have the whole family. It's worth further investigation. I'll send you all I have in a couple of days.
In the meantime, if you like. contact Wolfgang as he is interested in the Schwerdtfeger Family from Kolberg. Is it spelled Kolberg or Kolburg ?
Wolgangs E-Mail Address is:" firstname.lastname@example.org" . Mine is email@example.com