Dwight Mackintosh (1906-1999) spent fifty-six years, from the age of 16, in institutions for the mentally retarded until he was released in 1978.  Upon his release, he began participating in a program at the Creative Growth Art Center in Oakland, California, where he spent the next twenty years prolifically creating art.  Mackintosh is the subject of Dwight Mackintosh: The Boy Who Time Forgot (Oakland: Creative Growth Center, 1990) by art historian John Macgregor, who describes Mackintosh’s work as representing “the externalization of the artist’s internal reality.  The consistent pictorial language in which the images are embodied is exclusively the product of internal necessity and of obsessive need to fill the blankness of paper with personal markings.”