Raymond B.
Cattell

University of Illinois








Earl B.
Hunt

University of Washington


Paul
Horst

(Gerontology Family Tree)


Charles R.
Strother

University of Washington


K. Warner
Schaie

Penn State


Christopher
Hertzog

Georgia Tech


Dayna R.
Touron

University of North Carolina - Greensboro

David Joseph
Frank

University of North Carolina - Greensboro
(Options)

David FrankX