Cartoonist, engineer and inventor of Goldbergian devices, Rube Goldberg, was a native of San Francisco. In this item, he addresses the epidemic of crossword puzzle mania. Crossword puzzles were a hot topic in 1925.
Frederick Childe Hassam was a pioneer American exponent of impressionism. He did some work in California. I hope to post a few of his works, including "Old Chinatown, San Francisco, 1904".