Hello,Robert,
There is now a Davie surname project at FamilyTreeDNA.
It would be wonderful if your father wanted to be tested.
Go to the website and under "Projects" go to "D" surnames.
Find "Davie" Click and there is the Davie project. There is a
discount available for men who test under the sponsorship of
a project. The best test to start with is the 37 marker
test. We hope to discover lineages for the Davie name.
I look forward to welcoming your father to the project.
Wren Davie Cooper