"Americans are very intrigued about Wales and their Celtic ancestry. If they feel they have half a toe in the Celtic gene pond, they'll be beside themselves with excitement and hot-footing it over here to get more."
I don't doubt that a lot of folks have Welsh roots but they picked these famous people as examples:
Tom Cruise's Welsh ancestry was questioned here and also revised on ancestry.com.
The Welsh site says Tommy Lee Jones's father, Clyde Jones, was Welsh. Clyde was born in Texas in 1926. Both of Clyde's parents were born in the U.S. as were all four of his grandparents, all eight of his great-grandparents, and a good chunk of his family tree for several more generations. Because the origins of most of his ancestors are unidentified, we don't know how many of these lines actually led from Wales.
Dallas, Texas 1930
Kevin Spacey says his great-grandfather was a Welshman named Spacey. Actually, his grandfather Joseph emigrated from Bohemia as a toddler. He changed his name from Spacek to Spacey when he was in his 30's.
Mount Vernon, NY 1920Hicksville, NY 1930
Half a toe, indeed. Some of those Welsh bits are quite rare.