William H. Frey II, Ph.D.
Born: 1947 in Atlanta.
Job: Senior research director at HealthPartners Center for Memory and Aging.
Brushes with fame: Appeared in People magazine, on "20/20" and was interviewed by Walter Cronkite for his 1985 book on the mystery of tears.
Quirk: Texts his grown children pictures of the healthy food he eats.