Hi Ronda231,
That is a great document showing the tree associated with the Drysdales for the 15th & 16th centuries. I have an ancestor, James Drysdale, who was born in Clackmannan in 1680. Of course, it would be amazing to be able to link my ancestor to the group from your document. I have also compiled a list from online census data to indicate the population changes for Drysdales in various centres which is attached.
Best,
Robert