of artists invited to create an art gallery at Monterey's Hotel Del Monte in 1907. He began teaching as a substitute drawing teacher in June 1909 at the California School of Arts and Crafts (CSAC) in Berkeley. By August he was appointed a permanent member of the faculty with the title "Instructor for Still Life and Landscape Painting in Oil." He published several articles on art history in the CSAC Alumni Magazine. He exhibited with members of the Berkeley art colony between 1906 and 1911. He taught at the California School of Fine Arts in San Francisco from 1916 to 1917, but his contract was not renewed because the conservative director of that school, Pedro Joseph de Lemos, objected to Martinez's "flamboyant attire and socialist-inspired commentaries." Martinez continued to teach at the CSAC and moved in 1924 to its new Oakland campus where three years later he was appointed a "Professor of Painting." He officially retired in September 1942. The School was renamed the California College of the Arts (CCA) in 2003. He taught summer classes in the Monterey area from 1910 to 1914. From 1915 through the late 1920s he instructed his summer classes from his Piedmont studio-home. In 1912 he helped found the California Society of Etchers; then, the following year he was elected to the National Geographic Society and given a key to the Capitol Club in Monterey. Also in 1913 he made a painting trip to the Arizona desert with Francis McComas (painter), which abruptly ended with much animosity and negative publicity in the press. In 1914, Impressionists Childe Hassam and Edward Simmons came to Piedmont to view Martinez' desert paintings. The following year he exhibited at the Panama Pacific International Exhibition (where he won honorable mention) and at the Golden Gate Park Museum in San Francisco. Throughout this period he had shows in New York, Philadelphia and San Francisco. Noted paintings of this period are Head of a Girl, The Storm, Piedmont Hills and Lake Merritt. Between 1916 and 1920 he had numerous exhibitions including at the Palace of Fine Arts, The San Francisco Art Association and the Hotel Oakland. Martinez became a member of the American Federation of Arts in 1921. In subsequent years he continued to exhibit, but was increasingly called upon to be a juror of other artists' works. In 1935 he showed The Green Moon at the San Francisco Museum of