David Ireland worked in the Bay Area as a conceptual artist, making installations out of simple, often found materials. I just visited his home in the Mission District, at 500 Capp Street, which is filled from top to bottom with his work and often made for specific places in the house. It has been preserved by a foundation and just recently opened for tours that are a must when in San Francisco.
Capillary Action with Brown Rectangle, 1994. Courtesy the Anglim Gilbert Gallery, San Francisco.