The Preston School of Industry, also known as Preston Castle, was a reform school located in Ione, California, in Amador County. It was proposed by, and ultimately named after, state senator Edward Myers Preston. The cornerstone was laid in December 1890, and the institution was opened in June 1894 when seven wards were transferred there f…
The Preston School of Industry, also known as Preston Castle, was a reform school located in Ione, California, in Amador County. It was proposed by, and ultimately named after, state senator Edward Myers Preston. The cornerstone was laid in December 1890, and the institution was opened in June 1894 when seven wards were transferred there from San Quentin State Prison. It is considered one of the oldest and best-known reform schools in the United States.