Silent Studio Directory - 217 - O O'Conor Productions - US - 1922 - production and distribution company with offices located at 220 W. 42nd Street, New York. O. T. Crawford Film Exchange Co. - 1907-1910 - distribution company located at 1401-05 Locust St., St. Louis, Missouri; 421 4th Avenue, Louisville, Kentucky; and 314 Carondelet Street, New Orleans, Louisiana. Oakdale Productions - US - 1918 - production company. Ocean Film Corp. - US - 1915 - production company with John L. Dudley as president and James D. Goldburg as general manager with offices at 220 W. 42nd St. New York; acquired by the Raver Film Corp. Octagon Films, Inc. - US - 1920 - production company associated with B. A. Rolfe Productions; located in Yonkers, New York; went bankrupt after Houdini film. Odessa Film Factory of Ukrainfil'm - RUS - 1929-1936 - production company formed from Odessa Film Factory of VUFKU. [see next two entries] Odessa Film Factory of VUFKU - RUS - 1922-1929 - production company originally named Odessa Section of the All-Ukraine Kino Factory [see next]; VUFKU meant All-Ukraine Photo-Film Directorate; name was changed again in 1929 to Odessa Film Factory of Ukrainfil'm. Odessa Section of the All-Ukraine Kino Factory - RUS - 1919- 1922 - production company originally started in 1919 as part of the Political Department of the 41st Red Army Division; became known as Odessa Section of the All-Ukraine Kino Factory in 1920; name was changed in 1922 to Odessa Film Factory of VUFKU. Ogden Pictures Corp. - US - 1917 - production company formed in Ogden, Utah, with Albert