Here we go:
PRR:
RD No. Model Builder Maker
1478 SW7 EMD Athearn
3395 4-6-2 Pacific PRR IHC
3750 K4s Pacific PRR Bachmann
4700* RS2 ALCO Mantua
4856 GG1 PRR/GE IHC
5750* PA1 ALCO Athearn
5750B* PB1 ALCO Athearn
5753 PA1 ALCO PROTO 2000
5756B PB1 ALCO PROTO 2000
5765 E8A EMD PROTO 2000
5772* RF-16 BALDWIN Model Power “Shark”
5772B* RF-16B BALDWIN Model Power “Shark”
5860 E7A EMD PROTO 2000
5925* SW7 EMD SW Wrecked - Parts Source
6165 J1 Texas Lima Broadway Ltd.
6762 M1B Mountain JUNIATA/PRR Broadway Ltd.
7609 SD9 EMD Athearn
8792 S12 BALDWIN Athearn
8799 GP7 EMD PROTO 2000
8878 S3 ALCO PROTO 2000
8952* SD45 EMD Athearn
9448 CF16-4 (C-Liner) F-M PROTO 1000
9473 ERIE BUILT F-M PROTO 1000
9493 CF16-4 (C-Liner) F-M PROTO 1000
9506* F7A EMD Athearn
9506* F7A EMD Athearn Number-Keystone on nose
9506A* F7A EMD Athearn
9506B* F7B EMD Athearn
9508 F3A EMD PROTO 1000
9551B F7B EMD Athearn
9600 FA1 ALCO Walthers
9605 FA1 ALCO PROTO 2000
9606B FB1 ALCO PROTO 2000
9643 F7A EMD Athearn
9796* F7A EMD Mantua Parts Source
9796* F7A EMD Mantua
9832B F7B EMD Athearn
* Indicates original Elkhart Unit inherited from my grandfather in 1989.
New Haven:
0760 PA ALCO PROTO 2000
Conrail
2 SD40-2s
1 8-40CW
1 GP38-2
1 SW1500
1 GP40-2 shell
Amtrak
1 F40PH
That's what I remember at the moment.