We now have two (2) Y 37-marker analyses, four (4)Y 25-marker and three (3)Y 12-marker DNA analyses completed. In addition, two are currently being process to the Y-37 level. Test results for completed analyses have been received and are displayed at the end of this write-up. The first 25 marker analysis which now describes the Most Distant Ancestor as Cornelius J. (Courtright) Burrier has also contributed to a major shaking of one family tree by pointing to the probability of an informal adoption several generations ago. I would suggest reading The Mumma Surname DNA Project Website to see what can be done by supplementing traditional genealogic research techniques with DNA analyses as well as how family lore might be modified. For additional information on the process of obtaining DNA swabbings, please check out the Dorsey website and click on "Collecting Your Own DNA" for good explanations of DNA sampling, what is involved in the process and some success stories. For a better understanding of the DNA Project hows, whys and whens, Family Tree DNA offers several excellent tutorials at Family Tree DNA Tutorials I would also suggest clicking into Genetics 101 by Kerchner at the bottom of the list of tutorials. He is a well experienced independent genealogist in the traditional mode and on top of the DNA related genealogy. His site offers many more recommended readings and the hyperlinks to get there.