Riverside Public Library
We own several collections of measured drawings, the Dorothy Dunbar Landscape Architecture Plans, the Josef Purkart Collection of Architectural Drawings, the Ida Leona Mine Plans, the Girls' High School Plans and Specifications, and, as part of the Library's archives, a collection of library plans. Finding aids are available.
The Dunbar Collection consists of 39 plans of Riverside and Riverside area residential, civic, and commercial landscapes and gardens. Riversider, Dorothy Dunbar, was one of Southern California's premier landscape architects during the mid-Twentieth Century and one of the few women in the field. The dates of the items range from 1934 to 1959. Some of the notable drawings are of such places as March Air Force Base, the Parent Navel Orange Tree on Magnolia Ave., and Lincoln Park.
The Purkart Collection consists of approximately 130 lined drawings and blueprints by various architects for residential, civic, and commercial buildings in and around Riverside. The majority of the items date from 1941 to 1959. Many of the structures are still standing and some are now considered landmarks.
The Ida Leona Mine (also known as the Gavilan Mine) was one of the most productive mines in the Gavilan Gold Mining District south of Riverside (and within the City's Sphere of Influence). The Gavilan Mining and Milling Company was incorporated in 1891. There are 3 blueprints and 5 measured drawings dating for the most part to the 1930s.