The CORBY surname, according to the Dictionary of American Family Names, has three possible origins:

To ensure more in-depth results, it is recommended that you select a test that includes Y-DNA67 (preferred), Y-DNA37 (next best) or Y-DNA25.

If anyone has tested for lower markers, e.g. Y-DNA12, they can upgrade to the Y-DNA67 or Y-DNA37 tests.

Please click on the Website link above to view more Project information and some useful links.

Also, please feel free to email me with any questions you may have.

Sincerely, Tom Raskin