I haven't been keeping this index up to date but I did want to bring it back for the roster links which I frequently use.   Roadname links take you to internet roster webpages.

My steam photo index is here: [link]

AC - ride
AC&Y - H16-44
ADM - SW1200
Amtrak - F40PH #230, #232, #240,  #241, #215,  288, #201, ride 1,  2, SW Chief, late, P42 #146,  #207, #93, #30, #34, P32
AE&FR - 45T
ARR - SD70MAC #4323*, #4324, ride
AT&N - RS1
AT&SF - F3 #19C, #30C, SD45 #5509, #5570, U30CG 1,  2, E, PA1 #67,  #65, F7 #325, #314, #344, F3 #29, #28, TO, keys, El Cap 1, 2, bling, F-M, GP20 #1115,  #1127, #1104, station, GP35, U28CG 1, 2, E2, freight F7 #268, F7 #339, RSD15, H12-44TS, GP7, RS1, caboose, H12-44
B&O - F7, E8, E9, S1, GP9, GP30, Grand Central Station
B&OCT - SW
BA& P - GP #107, #104, boxcab #64,  #43
BJ - GP16, S13
BN - plate, SD40, SD60M
BNSF - ES44 #7744 1, 2, #7548, radio freqs, SD70ACe, SD70MAC #9710, #9910, #9968, SD60M, frog,  flange lube, SD40-2, GP30u, GP35u, GP38-2, GP39-2, maint truck,  C44-9W #4558, #4566,  #1083, #972, GP38 1 GP38 2, GP50, train, GP39 #2891, #2772, GP35
BR (British Rail) - train,  signals*, ICE, train 2
Burlington - see CB&Q
BRC - TR2, SW1200, C424 #604, #600, crummy
C&EI - E7, GP7 68, 216, FP7, SW7
C&H - S12
C&IM - RS1325, SD9,  SW1200, caboose
C&LC - GP20, SW
C&NW - ride, TR2, SW1, GP9 #1733, #1730, NW station 1, E7, E8 #5026, #5022, F+E. GP40, GP35, rail, map, F7 #4067A, #4083C, #4077A, #4100A, F7, GP9 #1733, #1740, H10-44, GP7 #1581, #1565, #1638, NW station 2, SD40 #874, #875 1, 2, #885, H16-66, wreck, booster, SD40-2, caboose, GP9R, C425 #403, #402, scoot, S2 #1141, #1120 & #1171GP30, Jordan Spreader, Beep, C44-9W
C&O - ferry, <A  href="[link]">caboose, SD40 #7469, #7457, FP7, NW2, SW9, U30C, GP7 #5756, #5821,  GP38
C&S - F7, SD40, SD9,  NW2, E5
C&WI - RS1 261, 258
CA&E - car #316, #406
CB&Q - ride, gas-electric, FT, F3 #123, #133, GP7 #233, #262, E7,  E8 #9945, #9972, SD9, Zephyr, SD45, F+GPs, U25C, scoot, U25B, S1, caboose, Nebraska Z 1, 2, Afternoon Z, GP20, SD24, GP30 #945 Union Station, see also C&S and FW&D
CdFdL (France) - streetcar  1, 2
CGW - S2, GP30, SD40, DS44-1000 #40, #38, F3 #112C, 110C, F5, GP7, TR2
CI&L - see Monon
CMStP& P - keys, steeple cab, StP station, box cab E36, E34, E22, F #60, FP7 #97C 1,  2, H16-44, H12-44, Lil Joe, goat, F #77, E7, E9, NW2,  U33C, VO1000, GP9, 44T
CN - caboose, ES44DC, SD40-2W, <a  href="[link]">coach
CNS&M - silverliner 756, car 715
ComEd - pusher
CO-OP - trackmobile
CP - prairie, canyon
CR (Copper Range) - S12, SW1,
CRI& P - FA1 #134, #128 + #137, F7, NW2, logo,  E3, EAB6 #750, #751, DL109. E6, E7, E8 #655, #649, C415 #424, #421, rag, caboose, GP7, RS3, business car, U25B,  U28B, 44t, 70t,  RS2 hybrid,  SW8
CRNJ - see JCL
CRTC - 5001, see also CTA
CSS&SB - box cab, shops, car #105, #24, #11, Lil Joe, SW, Express Car, ride, hook
CSX - AC4400CW
CTA - snow 1, 2, 3, 3, loop 1, 2, river, see also CRTC
CWG - GP7u 1, 2
D&RGW - Davenport 30t, GP30, Monarch Pass 1, 2, GP9, SD40T-2, F7, GP40 #3064, #3055, #3081, roundhouse
DB (Germany) - Koln station BR215, BR323, Erdorf station, BR110, branch line, BR261, speeder, cab car
DFTX - SW1200
DLCX - GP18
DME - SD40-2
Dravo - Whitcomb 70t
DRI&NW - S2
DTR - VO-1000, see also IMS
E-L - Lantern*, S1, RS3 1041, 1021, PA1 1, 2, 3, E, SD45,  GP35
ECS (Elmhurst Chicago Stone) - 45T, see also MSC
EJ&E - DT-6-6-2000 #925*, #903 + #913, #909, 702, DRS-6-6-1500, VO1000. wreck 1, 2, SD9, RS2, SW1200,  SD38-3
EMD - GP39u, F, SW1500, manual, GP40, SD45
Frisco - see StLSF
FURX - SD40-2
FW&D - box
G-P - SW
GCR - FA1
GM - see EMD
GM&O - GP30, F3 #800B, #801A, #809B, F7, RS2. E7 #103, #100, signal, GP35, S2, caboose 1, 2,
GN - E7 #508, #503, SDP45, ride 1, 2, StP station, F7, F3A, F3B, U33, GP9 #687. #659, #719, logo, GP35, GP20, NW2 #152, #113, SW1500, station, obs, GP30, SD9
GTW - F3, GP9 #4901, #4921, SW1200, S2
H&B - SW1000
Harbor - see IHB
HTT - grinder
IAIS - GP38-2
IC - electric 1, 2, E8 #4033, #4024, E7, TR2, TO station, GP9 #9041, #9228 & caboose, #9084, GP40 #3035, #3004, GP9+U30B, MOW, SW7, SW1 booster
IHB - slugs, roundhouse, SW9, NW2 #8830, #8722, #8779, #8785,  SW1500 #9221, #9201, #9211, repair
IMS - VO-1000, builder's plate, see also DTR
IT - GP, interurban
IU - F-M
J&L - SW1001
JCL - RDC, SW7, S12 #1054, #1074, H10-44, GP7, RS12
KCS - E, GP7, SD40, AC4400CW, ES44AC
KCT - SW1200 #74, #70, S2, station
KNR - SDP38
LS&I - RS, see also M&HM
M&HM - caboose, see also LS&I
M&StL - crummy
MER&L - interurban
Metra - details, F40PH #130, #129, #139, #149,  #152, #168, #172, #174, MP36PH #401, #405, F40PHM-2 #199, #185 & #195, #185 & #199, #188, yard, cab car 1, 2, 3, 4,  5, 6,  signal, crew
Milwaukee - see CMStP& P
MN&S - centercab
Monon - C420 #511, #508, BL2 #32, #36 1, 2, #37, builders plate, RS2 #53, #54, C420P, NW2 #13, #16,
MP - GP35. GP18, GP7
MSC - Whitcomb 65T #0145, #0144, see also ECS
MT - S4 #100, #102, SW1500
N&W - E8, GP9, GP7, SW9
North Shore - see CNS&M
NP - ride 1, 2, 3, business car,  S2, U25C, F7 #6011A,  #6010D, #6007D, #6704, #6701A, #6701C, DRS 4-4-15, VO1000. GP7 #553, #567, GP9 #208,  #241,  #266,  box, RS11, SW9, slug, SD45
NorthWestern - see C&NW
NS - ES40DC, D9-40CW, GP38-2, D8-32
NYC - F, more F's, GP9 #5926, #7511, FA1, F3, RS32, U25B, SW1,    SW9,  caboose, GP30, E8 #4065, #4037. see also P&LE
OHCR (OCS) - F40M
P-C - F-M, GG1 #4899, #4873, Arrow I, E7
P&LE (NYCS) - NW2, GP7, caboose
P& PU - SW7 #406 1, 2
Pakistan - Alco
PAT - PCC #1561, #1797, #1622, #1672, #1741, 1400
PRR - RF16, SD45, E7, H10-44, GP7, U25B, U25C
PT (Portland Terminal) - SW
Pullman - car steps
Rock Island - see CRI& P
RTA - FP45, cab car
Santa Fe - see AT&SF
SCL - E6, E7, E8, SAL E7, GP7
SNCF (France) - 2D2, BB
Soo - U30C 806, 805, caboose,  FP7A, F7B, SW1200,  GP9, GP35, GP30 #703 1,  2, see also WC
SFMR - cable car #505, #507
SI - RS1 #1212, #1211
South Shore - see CSS&SB
SP - 70T, SD9 #3889, #3853, #3903, U33,  SD40, SD45 #8813, #8929, cab view, GP9, black widow F7, red face F7, S12
SP&S - RS2, RS3, C425, F7, FA1
SPUD - 44T 1, 2
StLSF - E, VO1000 #236, #211, bling, see also AT&N
TdZ (Spain) - streetcar 1*, 2, 3
TP&W - SW1500, RS2, RS11, GP35 #902, #901
Underground (England) - subway
UP - C41-8, C45AC #5248*, #7637, U50C, U25+U50, Centennial DD40 #6910, #6921, GP40-2, Whitcomb 25T. MoW 1, 2, F3 2, 2, E8 #927, E9 #944, #913, #946, GP30 #829, turbine #8, #19, #5, #7, mp35, roadbed, way freight, business car, SD45 #3637,  #3627, C630, GP30 #705, DD35, SD40 #3048, #3116, SD40-2 #3046, #2989, #3047, #3045,  SD70M #4780, #4129, #4445,  #4829, #4938, #5007 1, #5007 2, #3838, SD60M, SD9043MAC 1, 2, SD70ACe, C44AC #6563, #6559, #5802, #6712, #7172, C44-9W, B40-8, B30-7, GP38-2, more GP38-2, yard manager, GP20, SW7,  S2, SD24, H10-44,  stacktrain, GP9B, see also SI and UPY.
UPY - GP15-1, GP15AC
USAF - 80T
USN - VO-1000
W&SR - Whitcomb 70t
unknown -  trolley,  Plymouth 35t, narrow gauge trucks, spanish commuters
VBZ (Switzerland) - trams
VZ (Switzerland) - 1, 2
WAB - box car
WC - SW1200
WP&Y - caboose, speeder 1, 2, Alco #106, GE #93, #92, #100, rotary plow
WTC - H12-44