needing some film footage, white pass/d&rgw k-27's

Im working on a documentary about the #190-class and the 770th railway operating battalion. I have gathered alot of information and film so far through some very generous folks. As i am putting all of this together, i have seen the need for some more footage. Im trying to show the various locomotives that served on the line during world war ii. Im looking for an footage of the white pass from the years of 1940-1959, and im also looking for some good footage of the K-27's with sound if available if not i can add the sound. I would prefer the footage be from back in the 30's or 40's but i will take what i can get. If you have anything or know where i should go please by all means give me some direction. If you have any questions fill free to contact me off the list.

tim