Pictures ->BM692
http://www.rrpicturearchives.net/locoPi ... px?id=7051
BM691
http://www.rrpicturearchives.net/locoPi ... px?id=7050
BM690
http://www.rrpicturearchives.net/locoPi ... px?id=7049
MEC693
http://www.rrpicturearchives.net/locoPi ... px?id=7163
Hope that helps!
Edit-
The 692 was (according to Bill Gingrich's GTI locomotive roster) retired sometime in 2002 and cut up and scrapped mid 2004.
Also from his roster The 691 retired October 1995, cut up in early 1996.
And last 693 retired at an unknown time and cut up at an unknown time (the photo trail ends in 1989, but it is still in operation at that time, so i have no clue when it met its end)
Another Edit-I just dug through NE Rail and found this
http://photos.nerail.org/showpic/?20050 ... ODE=&POYE=
if you look you see the 693 listed as oos with a main generator problem in June of '96, also about the same time the photo trail dries up and any photo of 693 taken in '96 show it pretty thoroughly stripped, all the engine room doors are open and the center axles on bothe trucks are gone. I think it is a safe bet that the 693 met its fate soon in 96/97, as it appeared in the deadline for some of 93, alot of 95 and a good chunk of 96.
There, now I hope that helps!