Gilbert Van Tassel Hamilton (1877 – 1943) was an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 physician and writer. He was the author of Introduction to Objective Psychopathology, one of the leading early manuals on psychopathology

Psychopathology

Psychopathology is the study of mental illness, mental distress, and abnormal/maladaptive behavior. The term is most commonly used within psychiatry where pathology refers to disease processes...

.

Born in Frazeysburg, Ohio

Frazeysburg, Ohio

Frazeysburg is a village in Muskingum County, Ohio, United States, along Wakatomika Creek. The population was 1,201 at the 2000 census.Frazeysburg is home to the world's largest apple basket, which is located on the Longaberger homestead.-Geography:...

, in 1877, Hamilton was the son of an Ohio merchant. He received his university education at Ohio Wesleyan University

Ohio Wesleyan University

Ohio Wesleyan University is a private liberal arts college in Delaware, Ohio, United States. It was founded in 1842 by Methodist leaders and Central Ohio residents as a nonsectarian institution, and is a member of the Ohio Five — a consortium of Ohio liberal arts colleges...

, graduating with the AB in 1898. After completing his degree, he enrolled at Jefferson Medical College in Philadelphia

Philadelphia, Pennsylvania

Philadelphia is the largest city in the Commonwealth of Pennsylvania and the county seat of Philadelphia County, with which it is coterminous. The city is located in the Northeastern United States along the Delaware and Schuylkill rivers. It is the fifth-most-populous city in the United States,...

, where he studied the treatment of nervous and mental disorders.