Do you know when and where the Kopps settled? My bunch came from Hinwil, Switzerland to Philadelphia in 1749, then to S.W. Virginia. Name spelled Honegger, Honaker, Honiker.
The Kopps came from Bavaria in 1732, landed in Philadelphia and settled in York County PA. Andrew Kopp learned PA long rifle making at the “York school” and built guns there before moving briefly to Emmitsburg MD. He then settled in Geeseytown which is just outside of Hollidaysburg (Blair County) PA. At the time Geeseytown was part of Huntingdon County so Andrew and his son George are considered Huntingdon County long rifle makers.
Huntingdon County Historical Society will be having an exhibit of Huntingdon County long rifles at the end of February if you’re interested.