Thomas J. Bouchard, Jr.

https://en.wikipedia.org/wiki/Thomas_J._Bouchard_Jr%2E

Thomas J. Bouchard Jr. (born October 3, 1937) is an American psychologist known for his behavioral genetics studies of twins raised apart. He is professor emeritus of psychology and director of the Minnesota Center for Twin and Adoption Research at the University of Minnesota. Bouchard received his PhD from the University of California, Berkeley in 1966.