I am checking on a Donaldson line in Peebleshire, Scotland. Andrew Donaldson is one of the Donaldson's I have been researching. This line went to Ontario, Canada in the 1840/50 era. Also, I have many of the same Lockhart given names in my data base. These folks, however are found in Michigan. Any chance for a tie-up there? If so, I have several books in my private library that have references to the Lockhart family. Do let me know.