Quote Originally Posted by Cawdorian View Post
I had a 25 marker DNA test performed, I tested my DNA because I had run into a brick wall at my paternal Great Grandfather. Around 25 males with my surname had already been tested including the family group I suspected I belonged in because of some earlier marriage between the families.

Surprise, my Y DNA came back as I1a everyone else with my surname was an R1b. We found that my GGF had been adopted by a man who married his widowed mother, he adopted his stepfather's surname. I know the name of his biological father and a little genealogical history of his family, but I haven't found a DNA match that makes any sense.

If you have a reasonable paper trail on your family and are interested in following the line further back in time, it may be beneficial to have a Y DNA test performed. The cost is in the range of $ 200 to $ 250 for a 25 marker test. There are several firms that perform the tests. A google search should help you find them. I wouldn't go for anything less than 25 markers.

You may be able to find a DNA project for your surname, if so you may be able to get a discounted price through the surname project. Again you can find these surname projects with a google search. Participating in a surname project can be quite rewarding as you will have several males with your surname who have been prevously tested. You do need other DNA participants with your surname with good genealogical paper trails to compare data with. If you are the "Lone Ranger" and do not have any other surname data to compare your results with, it may not be worthwhile to spend the spend the money.
i'm just getting mine tested as we speak, from here http://www.familytreedna.com/

37 marker for $200