elmer nelson bischoff was a visual artist in the san francisco bay area.bischoff, along with richard diebenkorn and david park, was part of the post-world war ii generation of artists who started as abstract painters and found their way back to figurative art.elmer bischoff, second child of john and elna (née nelson) bischoff, grew up in berkeley, california, the second-generation californian son of a father of german descent and a mot…