Hi, I just checked and the Richmond Times-Dispatch article on Sun. June 7, 1998 about the DNA testing involving descendants of Thomas Jefferson and other relatives and Sally Hemings is on line at Gateway VA. Go to this site and click on the DNA article. http://www.gateway-va.com/pages/day1news.htm Edith You wrote <Thank you. That is just the sort of information I was hoping for. This is the first I've heard of the "Y chromosomal DNA" technique. Well, it's early days. Eventually, someone will publish a decent discourse on this subject - maybe a reprint of the Richmond Times-Dispatch series.>