Sex researcher who was the first to take statistics of people's intimate behavior.
Inadequate care during his formative years led to a curvature of his spine that saved him from being drafted in World War I.
He was a professor and researcher at Indiana University, and his studies about sexuality are world renowned.
Married Clara Bracken McMillen in 1921; the couple had four children.
He was born in the same state as Frankie Valli.