If you see the 121 let me know. that is an Ex CGW engine. I want to put it my back yard.
According to my MRL roster, 121 is a GP9 ex BN 1927, exx NP 342, built 8/1957, bldr# 22745.
HOWEVER, MRL 115 is ex CGW 120, built 09/1951 as a GP7, builder# 14719. Became CNW 4337. Diesel era Vol 21 Number 4 (July/August 2010) has an excellent article on the GP9, Part 5. This covers both CGW and C&NW and includes several pictures of CGW 120 as well as CNW 120 and 4337. Built as a GP7, it was returned to EMD after a wreck and rebuilt with a GP9 carbody but retaining its 1500hp GP7 rating. Rebuilt by CNW 12/1974 and renumbered 4337. Went to LRC, then MRL in 12/1989. I wonder if it has a 567B or a 567C diesel engine?
As far as ex CGW SD40s go, the MRL roster I have dated 9/23/2008 lists no less than 6 former CGW SD40s:
220 ex CGW 408
221 ex CGW 404
222 ex CGW 405
223 ex CGW 407
224 ex CGW 401
225 ex CGW 409 blt 9/1966 builder# 32100
225 is the only one of the 6 still on the MRL roster as of the 9/23/2008 date. I also have a MRL equipment for sale listing dated 8/17/2010 which lists the 225 as "for sale". It also lists all of the SD45-2's cited in the earlier posts in this thread.
I do not know the current status of either MRL 115 (GP9) or MRL 220 (SD40). Either (or both) would be good GCW preservation candidates.
It is also possible that MRL 220 - 224 may still exist in some form.