i was doing a little research on our national film archives web sit and found a listing for the oregon trail made by universal it was listed as production date: c.1939 dont know if that refers to the year it was released or what. it states that it is a black and white movie on 35mm. if anyone can have a look they might be able to confirm if it is the lost john wayne movie or not. it was produced as a feature film. the title number is 33582
cheers smokey