
author
1876–1969
A pioneer in early clinical and educational psychology, this American scholar helped shape services for children with intellectual and learning disabilities. He also left a large body of work, including more than 30 books and hundreds of articles.

by J. E. Wallace (John Edward Wallace) Wallin
Born in Page County, Iowa, in 1876, he studied at Augustana College and then earned graduate degrees at Yale, including a Ph.D. in 1901. He became known as an early advocate for educational and clinical support for children then described in the language of his era as "mentally handicapped" or "subnormal," and his career helped lay groundwork for later special-education and school-psychology practice.
Wallin established psychology clinics, taught at several institutions, and wrote extensively across his long career. Sources consistently describe him as a prolific author, with more than 30 books and over 300 articles to his name, and his memoir The Odyssey of a Psychologist reflects how wide-ranging his work was in special education, clinical psychology, and mental hygiene.
Because the surviving online pages I found focus more on his professional record than on personal details, this overview stays close to what can be confirmed. What stands out most is the scale of his influence in the early twentieth century: he was one of the field's builders, especially where psychology met schooling, diagnosis, and care for children with special needs.