America now knows that Rob Lowe has an un-American ancestor. Recently, on the NBC program "Who Do You Think You Are?" the actor, who played the freedom-loving idealist Sam Seaborn on "The West Wing," learned that his great-great-great-great-great-grandfather, a Hessian soldier, bore arms against the Continental Army and was taken prisoner at the Battle of Trenton during the winter of 1776.
"You mean to tell me my five times great-grandfather was trying to stick it to George Washington?" the actor said in astonishment.
Lowe's televised odyssey from California to Washington, D.C., to Trenton to Germany might have entailed more time and money than most researchers can spare. But embarking on a quest to trace one's familial roots is not extraordinary; it's a popular pastime. In fact, the genealogy research site Ancestry (www.ancestry.com) gained 800,000 subscribers -- an 80 percent rise -- since November 2009, said J.P. Canton, the site's public relations manager.
With the availability of digitized online records, reconstructing one's family tree is easier than ever, say professional genealogists -- but some see pitfalls amid the ease of access.
For a yearly membership of $155.40, Ancestry alone provides 9 billion historical records, including census, immigration, birth, marriage, death and military records, said Anastasia Harman, the site's lead family historian. The site recently added a digitized version of the 1940 census.
There is no shortage of enthusiasts.
"People are more willing to do it because they can do it in their pajamas at midnight," said Jan Alpert, past president of the National Genealogical Society, an organization with 10,000 members that focuses on promoting genealogical education through courses, publications and conferences.
Kathleen W. Hinckley, a certified genealogist with the Association of Professional Genealogists, agreed. Before records became digitized, she said she operated by "cranking microfilm and writing letters to courthouses." Now, she spends 80 percent of her research time on the Internet, using sites such as Ancestry and FamilySearch (www.familysearch.org) to find clues.