With Rapido's announcement of 44-tonners, The samples look (and was running) great, I've passed on my suggestions to Bill/Rapido so I'm looking forward to their release.
I, of course, know what I will need, but I've seen some questions online as to who had the earlier phases, and which road numbers were which phase. I've compiled a quick list of the original owners of the Phase Ic and Phase III locomotives.
This information is from Extra 2000 South issue 51, and issue 52, which define the "phases" and includes drawings of Phase Ic, II, III, IV, V (51) and Ib and Vb (52). They also include serial numbers and all of the subsequent owners and dispositions through mid-1975 and lots of in service and builders' photos.
Phase Ic (53 units) (S/N 13092 - 15131)
- B&M: 114 - 117
- D&RGW: 38 - 44
- Iowa Ordnance Plant: 8-44, 9-44, 10-44, 11-44
- Kansas Ordnance Plant: 2
- Kentucky Ordnance Works: 1
- LV: 60-62
- MEC: 11 - 12
- MILW (CMStP&P): 1701
- Minneapolis & St. Louis Ry: D-172, D-842
- Missouri & Illinois Bridge & Belt: 100
- MP: 811
- BSL&W: 815
- I-GN: 812
- StLB&M: 813 - 814
- NYNH&H: 0800 - 0806
- NYO&W: 101 - 105
- Pine Buff Arsenal-US Army: unknown road number
- San Francisco & Napa Valley Ry: 30, 40
- Scioto Ordnance Plant: unknown road number
- Sheffield Steel Corporation: 1 - 3
- SP: 1900 - 1902
- US Navy - Brooklyn Navy Yard unknown road number
- US Naval Supply Depot, Pier 91 unknown road number
- Washington & Old Dominion RR: 47 - 49
Phase III (36 units) (S/N 18145 - 27794, 27973 - 27975)
- Atlantic & East Carolina RR: 8
- ATSF: 463 - 468
- Fernwood Columbia & Gulf RR: D-1, D-2, D-3
- High Point Thomasville & Denton: 101
- MEC: 13-15
- NYNH&H: 0807-0816
- Pacific Electric Railway: 1652-1654
- Sheffield Steel Co: 6
- US Army Aberdeen Proving Grounds: 7931-7932
- US Army Fort Clark: 7492
- US Army Fort Miffin Naval Ammo Depot: 7493
- US Naval Air Station: unknown road numbers (2 units)
- US Naval Ammunition Depot: unknown road number
- US Naval Supply Depot: unknown road number
- US Navy Whiting Field Naval Air Command: 5
Phase IVa (S/N 27793 - 29994)
- You can use the list at the Diesel Shop to identify them.
New Haven 44-tonners
- 0802 - Phase Ic - delivery
- 0812 - Phase III - delivery
- 0802 - Phase Ic - delivery
- 0805 - Phase Ic - delivery
- 0802 - Phase Ic - delivery
- 0805 - Phase Ic - delivery
- 0805 - Phase Ic - delivery
- 0806 - Phase Ic - delivery
- 0805 - Phase Ic - delivery
- 0806 - Phase Ic - delivery
- 0802 - Phase Ic - delivery
- 0804 - Phase Ic - Warm Orange with Pullman Green cab and top of hood
- 0802 - Phase Ic - delivery
- 0804 - Phase Ic - Warm Orange with Pullman Green cab and top of hood
- 0810 - Phase III - Warm Orange with Pullman Green cab and top of hood
- 0813 - Phase III - Warm Orange with Pullman Green cab and top of hood
- 0802 - Phase Ic - delivery
- 0804 - Phase Ic - Warm Orange with Pullman Green cab and top of hood
- 0805 - Phase Ic - delivery
- 0806 - Phase Ic - delivery
- 0810 - Phase III - Warm Orange with Pullman Green cab and top of hood
- 0812 - Phase III - delivery
- 0813 - Phase III - Warm Orange with Pullman Green cab