RESPONSE: The DNA testing program that I am most familiar with involves only the use of a male who carries the exact same surname as all those others being tested. As I understand there is some other type of testing involving females but it apparently is little used. As far as my ggg-grandfather who was Walter WALKER b. in the 1770's, our WALKER research group has been very successful in proving other descendants of his family, proving that his brother was the John WALKER , who first appeared on the tax lists of Knox Co., KY in 1803 with Walter . There was an early 1800's Will left by an elder John WALKER in Hawkins Co., TN that named both "a" John and Walter WALKER and others along with old John WALKER's second family from another marriage. A number of those male descendants have come forth and been able to prove with DNA testing that they were indeed from this same family. Likewise, there have been a small number of cases where people thought they were part of this family and DNA testing proved otherwise. Our family was also very fortunate to have an old ca 1840 letter from Walter WALKER and Annie UNK. WALKER addressed to my gg-grandparents, Cornelius Alexander TAYLOR b. 1794; d. 1874 and his wife, Sarah Ann WALKER b. 1795; c. ca 1885. This old letter provided a number of family names and family news let us know where Walter was in 1840 which was Owen Co., IN. Then we found at the LDS Family Center in SLC Walter's intestate estate court proceedings from 1850 which had been microfilmed by the LDS. In those court proceedings, Walter's heirs are named. The last named in the court proceedings is my gg-grandmother, Sarah WALKER, who was addressed as : Sarah TAYLOR (her married name) Since TAYLOR is our family surname, only my brothers and male cousins would be eligible to participate in any TAYLOR DNA project. Joyce Taylor Collins La Palma, CA Hello Everyone! Most of you I have shown a genetic match to and I was wondering if any of you had actually had any luck with the DNA testing and filling in the blanks in your genealogy research. I would love to hear from all of you. Sherry