Here's an idea, Leo, why not put that roster up here, and let the guys (and gals) fill in the blanks. A lot easier, if we can see what you are working with. Thanks!
Here's what I found, and there are no gaps, initially.........
FEC All-Time GP-40 Diesel Roster
Sorted by: Road Number.
Provided courtesy of John Sykes III edits by Wayne Eckert
Road Bld. Ret.
Num. Bldr. Model Bldr. # Date Date Notes Disposition
401 EMD GP40 36773 01/1971
402 EMD GP40 36774 01/1971 07/1979
Wrecked 2/12/79, rebuilt to 424
403 EMD GP40 36775 02/1971
404 EMD GP40 36776 02/1971 1
405 EMD GP40 36777 03/1971
406 EMD GP40 36778 03/1971
407 EMD GP40 36779 03/1971
408 EMD GP40 36780 03/1971 1
409 EMD GP40 36781 03/1971
410 EMD GP40 36782 03/1971
411 EMD GP40-2 5813- 1 11/1972
412 EMD GP40-2 5813- 2 11/1972
413 EMD GP40-2 5813- 3 11/1972 1
414 EMD GP40-2 5813- 4 11/1972 1
415 EMD GP40-2 5813- 5 11/1972
416 EMD GP40-2 74650- 1 10/1974
417 EMD GP40-2 74650- 2 10/1974
418 EMD GP40-2 74650- 3 10/1974 1
419 EMD GP40-2 786169- 1 10/1979 1
420 EMD GP40-2 786169- 2 10/1979 1
421 EMD GP40-2 786169- 3 10/1979
422 EMD GP40-2 786169- 4 10/1979
423 EMD GP40-2 786169- 5 10/1979 1
Wrecked 4/11/87, Rblt by Republic Loco. to FEC 437.
424 EMD GP40-2 786169- 1 01/1980 1
Mfg date 10-79 Rblt from 402
425 EMD GP40-2 796325- 1 09/1980 1
426 EMD GP40-2 796325- 2 09/1980
427 EMD GP40-2 796325- 3 09/1980
428 EMD GP40-2 796325- 4 09/1980
429 EMD GP40-2 796325- 5 09/1980
430 EMD GP40-2 847012- 1 12/1984 1 Eqpd with dynamic brakes.
431 EMD GP40-2 847012- 2 12/1984 1 Eqpd with dynamic brakes.
432 EMD GP40-2 857078- 1 12/1985
433 EMD GP40-2 857127- 1 12/1986
434 EMD GP40-2 857127- 2 12/1986 Last GP40-2 blt by EMD.
435 EMD GP40 32569 12/1966 Ex BN 3993, nee CB&Q 173
acquired 12/87 from NRE.
436 EMD GP40 33752 02/1968 Ex BN 3031, nee CB&Q 631,
acquired 03/88 from NRE.
437 EMD GP40-2 78169- 5 10/1979 Rblt 8/87 from wrecked FEC 423
438 EMD GP40 33870 02/1968 Ex BN 3036, nee CB&Q 636,
acquired 04/88 from NRE.
439 EMD GP40 31672 03/1966 Ex SOO 4609, nee MILW 186/2006,
acquired 05/88 from NRE.
440 EMD GP40 32305 10/1966 Ex SOO 4649, nee MILW 197/2023,
441 EMD GP40 32306 10/1966 Ex SOO 4650, nee MILW 198/2024,
442 EMD GP40-2 Ex Conrail 3193
443 EMD GP40-2 Ex Conrail 3207
444 EMD GP40-3 Ex CSX 6547 dynamic brakes
445 EMD GP40-3 Ex CSX 6818 dynamic brakes
446 EMD GP40-3 Ex CSX 6844 dynamic brakes
447 EMD GP40-3 Ex CSX 6774 dynamic brakes
FEC 448 GP40-3 34333 28 15535 ex-PC
FEC 449 GP40-3 34334 14 36688 ex-PC
FEC 451 GP40 34139 3 15536 ex-MILW
FEC 452 GP40 32488 2 15537 ex-MILW
FEC 453 GP40 35472 3 ex-MKT
Note. 1. Verified by checking builders plate on unit