I am looking for descendants of John Johnston of Craigieburn, Scotland, (1646-1695). He went to the Hanseatic League port of Danzig which was later incorporated into Germany and started a trading business. He was the gggggrandfather of Maximilian von Johnston und Kroegeborn, Chamberlain to the Emperor of Germany, 1895-96.
There is an international group of over 50 Johnston/es who would like to verify the von Johnston line by way of Y-DNA testing. We have all had our Y-DNA tested - Danish Viking. It is my belief that we are descended from Sir Adam Johnston of that Ilk, and that the male line of our Scottish clan did not die out.
Please contact me if you can help.