Landscape, portrait, and marine artist. Lived primarily in San Francisco, studied under James Harris and Jasper F. Cropsey while living in New York. Bush's favorite and most popular subject was tropical landscape, a pusuit that may have been inspired by his route to California which reportedly brought him through the jungles of Nicaragua. His tropical paintings brought him acclaim and patronage from wealthy collectors (William Ralston and Henry Meiggs), allowing him to make sketching trips to Panama (1868) and South America (1875). He had established a studio in San Francisco in 1853, and with the exception of a few years residence in Sacramento, a trip to NYC (1871-72), and several sketching trips, he remained in that city his entire career. Later in his career he focused more on painting marines. He was art director of the California section at the Chicago World's Fair in 1893. Bush's works can be found at the Oakland Museum, the Society of California Pioneers, and the Crocker Musem.