In 1906 San Francisco , Frisco Jenny Sandoval ( Ruth Chatterton ) , a denizen of the notorious Tenderloin district , wants to marry piano player Dan McAllister ( James Murray ) , but her saloonkeeper father Jim ( Robert Emmett O'Connor ) is adamantly opposed to it . An earthquake kills both men and devastates the city . In the aftermath , Jenny gives birth to a son , whom she names Dan
earthquake
1906 San Francisco earthquake
Frisco Jenny