George Dennison (1925–1987) was an American novelist and short-story author best known for The Lives of Children, his account of the First Street School.
He also wrote fiction, plays, and critical essays, most notably his novel Luisa Domic and a collection of shorter works, Pierrot and Other Stories.
Having grown up in a suburb of Pittsburgh, he joined the Navy during World War II, attended the New School for Social Research on the GI Bill, and took graduate courses at New York University.
He trained at the New York Institute for Gestalt Therapy with Paul Goodman and later worked with severely disturbed children as a lay therapist and teacher.
In the late Sixties George Dennison and his wife Mabel Chrystie, the founder of the First Street School, moved to rural Maine, where they raised three children.