Mosley Grape - Live at Indigo Ranch (1989)

James Robert "Bob" Mosley (born December 4, 1942, Paradise Valley, California) is principally known as the bass player and one of the songwriters and vocalists for the band Moby Grape. Some of his best known songs with Moby Grape are "Mr. Blues", "Come In The Morning", and "Lazy Me" from the first Moby Grape album (1967)

Bob Mosley spent his adolescence in San Diego, where he graduated from Kearny High School. One of the first bands that he organized in San Diego was called The Misfits, who had one single on Imperial Records and one on Troy Records in the early 1960s. After playing with the Joel Scott Hill Trio, he relocated to San Francisco where he played with The Vejtables for a brief period. Mosley has had a varied musical career, including a prominent but interrupted role in Moby Grape during the 1967-1971 period, and the commencement of a solo career in 1972. The following year he formed the Darrow Mosley Band with Chris Darrow (formerly of Nitty Gritty Dirt Band and Kaleidoscope) and issued one album, "Desert Rain." In 1977 Mosley played with Neil Young in a band called The Ducks, with Jeff Blackburn (guitar/voc) and John Craviotto (drums), which had a brief life.

Mosley's career has been plagued by the challenges of schizophrenia, as was the case with Moby Grape bandmate Skip Spence. Both musicians were homeless for several years. Mosley's schizophrenia was first diagnosed after he left Moby Grape in 1969, following the release of Moby Grape '69. Mosley shocked the remaining band members by leaving the band to join the Marines. It was during basic training with the Marines that Mosley was first diagnosed as a paranoid schizophrenic. He was discharged from the Marines nine months after basic training.

In 1996, three of Mosley's fellow band members, Jerry Miller, Peter Lewis and Don Stevenson, in part reformed Moby Grape with the objective of helping Mosley recover emotionally and financially. Bob Mosley describes the circumstances as follows: "In 1996, Peter Lewis picked me up along the side of a San Diego freeway where I was living, to tell me a ruling by San Francisco Judge Garcia gave Moby Grape their name back. I was ready to go to work again." in relation to the circumstances ultimately leading to the recording of True Blue. Earlier attempts by Moby Grape band members to help Mosley out of homelessness had been less successful. One such attempt is described by Peter Lewis as follows: "We went to find Bob, and there he was, living in this cardboard box. He had these friends, the squirrels and the lizards that he had. And I brought this guitar, cost me a hundred bucks, you know, and I left that with him and a tape of Moby Grape songs and a tape recorder with batteries in it and some extra batteries. So the next weekend, I came back, and there was no guitar, but the cassette case... He had tried to tear all the tape out of it and had left it, you know, down there in the bushes. And that's all that was left. Bob was gone, you know."; Paul Conley. The reformation was troubled for sometime as Mosley believed Stevenson was trying to kill him. Stevenson eventually left the band.

Unlike bandmate Skip Spence, whose musical output largely ceased within a few years of the onset of schizophrenia, Bob Mosley has been able to continue to write songs and record music for much of his life. His most recent solo release is True Blue, released on the Taxim label in 2005