About every 6 months, I post this same appeal...so far, there are few takers. I beg you fellow Donaldsons! If you are truly serious about this genealogy thing, then spend a little money and join the FamilyTreeDNA project (or, one similar to it).
I have nothing to do with the organization, but I did pay for the test, and I am discovering new genealogy information, everyday. I am finding people who are near kin, genetically speaking. But very few Donaldsons are participating in the project! If you truly want to find your personal family line, join the project.
The test is cheap (about $100) and painless and, if it is widely administered, it will eventually prove family relationships! Come on, fellow family Donaldsons, get the test done! And we will all find our relatives! Just Google on "FamilyTreeDNA." You will find out what to do!