Thaddeus Lincoln Bolton (July 27, 1865 – January 3, 1948) was an American psychologist who was head of the Department of Psychology at Temple University for twenty years.
[1] In February 1947, about a year before his death, he set aside $61,000 in a trust fund to establish the Thaddeus L. Bolton Professorship at Temple.
He then worked in school administration for a year before enrolling in the psychology program at Clark University, where his main mentor was Edmund Sanford.
In the spring of 1908, he resigned from the University of Nebraska, and soon afterward joined the Tempe Normal School, where he founded and edited the Arizona Journal of Education.
He later joined the faculty of Temple University in the 1917–1918 school year, and was named the founding chairman of their Department of Psychology in 1924.