In 1917, Weber was the only woman granted membership in the Motion Picture Directors Association, and from 1917 Weber was active in supporting the newly established Hollywood Studio Club, a residence for struggling would-be starlets. After the United States entered World War I, Weber served on the board of the Motion Picture War Service Association, headed by D. W. Griffith and including Mack Sennett, Charlie Chaplin, Mary Pickford, Douglas Fairbanks, William S. Hart, Cecil B. DeMille, and William Desmond Taylor. The Association raised funds for the construction of a thousand-bed hospital.