The so-called California-style watercolorists, an informal but closely knit group, were most active from the late 1920s through the 1950s. They achieved national recognition for their generally large-scale watercolors painted with broad, saturated washes in a manner that was bold and expressive, yet representational. Among the best-known of the group were Millard Sheets, Phil Dike, Rex Brandt, Barse Miller, Emil Kosa Jr, and Dong Kingman. These artists...