California photographer and environmental conservationist. His work was posthumously displayed in 2001 at the Oakland Museum in an exhibition entitled After the Storm: Bob Walker and the Art of Environmental Photography.
He studied at Oberlin College in Ohio and subsequently moved to the San Francisco Bay Area.
Among his famous photographic images is a 1982 piece entitled Winter Storm over Marsh Creek.
He was born in New York and raised in Ohio. He died of AIDS at the age of forty.
He and his contemporary Ellen Brooks were both California-based photographers.