20th-century American psychologists

Tom_Ostrom

Thomas Marshall Ostrom (March 1, 1936 – May 16, 1994) was a psychologist who helped further the study of social psychology. Prior to Ostrom, the field explored and identified the cognitive foundations of social activity. Ostrom pushed the field to studying the social foundations of cognitive activity.

Donald_R._Atkinson

Donald Ray Atkinson (February 10, 1940, in Union City, Indiana–January 11, 2008, in Santa Barbara, CA) was an American counseling psychologist and professor at the University of California, Santa Barbara (UCSB). He was known for his extensive work in multicultural counseling psychology. He was the director of training for UCSB's Counseling Psychology Program for ten years (1979-1989), and previously as Assistant Dean of the Department of Education there for four years (1975-1979). Atkinson grew up in Baraboo, Wisconsin and graduated from Baraboo High School. He served in the United States Navy for two years. He wrote a book about Baraboo: "Baraboo: A Selective History." He also wrote other books and articles about counseling. He died from pancreatic cancer in Jackson County, Oregon. He retired from the faculty of UCSB in 2002.

John_Henry_Holland

John Henry Holland (February 2, 1929 – August 9, 2015) was an American scientist and professor of psychology and electrical engineering and computer science at the University of Michigan, Ann Arbor. He was a pioneer in what became known as genetic algorithms.

Clarence_Arthur_Tripp

Clarence Arthur Tripp Jr. (1919–2003) was an American psychologist, writer, and researcher for Alfred Kinsey.Born on October 4, 1919, in Denton, Texas, and attended Corsicana High School in May 1938. He studied at the New York Institute of Photography in New York City and in 1940, he became a member of the Society of Motion Picture Engineers. He also studied photography at the Eastman School of Photography, Rochester Athenaeum and Mechanics Institute (now Rochester Institute of Technology). He graduated from Rochester Athenaeum and Mechanics Institute in 1941 where he majored in commercial photography. He served in the United States Navy. In February 1943, he took a job at 20th Century Fox in New York City.Tripp worked with Kinsey at the Kinsey Institute for Research in Sex, Gender and Reproduction in Bloomington, Indiana, from 1948 to 1956. He earned a PhD in Clinical psychology from New York University. Tripp drew attention with a book, published posthumously, wherein he made the case that Abraham Lincoln had several same-sex relationships.

Ralph_Hefferline

Ralph Franklin Hefferline (15 February 1910 in Muncie, Indiana – 16 March 1974) was a psychology professor at Columbia University.Hefferline became a patient of Fritz Perls around 1946. He joined a small training group led by Perls in 1948 in New York, and went on to contribute a chapter to the book which defined Gestalt Therapy, Gestalt Therapy, Excitement and Growth in the Human Personality, co-authored by Perls, Paul Goodman and Hefferline, published in 1951. He was the third and junior author and provided the section containing practical exercises.
He went on to join the Behaviourist school of psychology.

Carolyn_Sherif

Carolyn Wood Sherif (1922–1982) was an American social psychologist who helped to develop social judgment theory and contributed pioneering research in the areas of the self-system, group conflict, cooperation, and gender identity. She also assumed a leading role in psychology both nationally as well as internationally. In addition to performing seminal social psychology research, Wood Sherif devoted herself to teaching her students and was recognized for her efforts with an American Psychological Association award named in her honor that is presented annually.

Ravenna_Helson

Ravenna Mathews Helson (February 13, 1925–2020) was an American psychologist known for her research on the psychology of women and creativity. Dacher Keltner has described her as "a pioneer in the study of women's lives".

Roger_Birkman

Roger Winfred Birkman (February 1, 1919 – March 26, 2014) was an American organizational psychologist. He was the creator of The Birkman Method, a workplace psychological assessment. Birkman received his Ph.D. in psychology in 1961 from the University of Texas at Austin. He was the founder and chairman of the board of Birkman International, Inc.

Asa_Grant_Hilliard_III

Asa G. Hilliard III (August 22, 1933 – August 13, 2007), also known as Nana Baffour Amankwatia II, was an African-American professor of educational psychology who worked on indigenous ancient African history (ancient Egyptian), culture, education and society. He was the Fuller E. Callaway Professor of Urban Education at Georgia State University, with joint appointments in the Department of Education Policy Studies and the Department of Educational Psychology and Special Education. Prior to his position at Georgia State, Hilliard served as the Dean of the School of Education at San Francisco State University in San Francisco, California.