With the replacement of Mayor Frank L. Shaw in 1938, the city gained a reformist mayor in Fletcher Bowron. He forced dozens of city commissioners out, as well as more than 45 LAPD officers. Bowron also appointed the first African American and the first woman to the Police Commission. The modernizer Arthur C. Hohmann was made chief in 1939 and resigned in 1941 after a strike at the North American Aviation plant in Inglewood, in which he refused to use the LAPD as strikebreakers.