Hello folks-

1936 to 1940 were the years that large numbers of square corner Drednaught end equipped '37 AAR box cars were built. As can be seen in the list below of these square corner end cars, there were many 10s of thousands of them built in both Canada and the US.

This list is from data in the recently released volume on 1937 AAR box cars by Pat Wider, continuing the fine series of Railroad Prototype Cyclopedias.

Square corner end '37 AAR rosters by RR:

ATSF 136000-136499; 136500-137999; 138000-138499;

B&O 384000-384499

C&EI 64000-64499

C&O 4000-4499; 4500-4999; 5000-5399; 5400-5499

CN had 1000s

CP had 1000s

ERIE 78000-78499

ITC 6000-6099

KCS 14000-14199; 17000-17499; 17450-17749

NKP 15000-15499; 15500-15999

ONT 90000-90499; 90500-90999

RDG 103000-103299

SL-SF 140000-140038

SOO 136000-136198 even #s

SRR 10000-12022; 12023-13042; 13043-13063; 13064-14395; 260500-26099; 261000-262036; 306000-307021

SP 32770-33269; 33270-33519; 335200-34019; 34020-34519; 37840-38089; 38090-38339; 38340-38589; 38590-38839

T&P 1700-1724; 3900-3919; 40000-40499; 40500-40999

UP 182812-18399; 184000-185899

WP 20001- 20200 These were 9'6" IH.

The RPC #35's roster data pages gives much detail, such as roof,brake and other details. Anyone viewing this post with questions about a particular Rail Road's details, PM me and I will answer those questions. I would encourage a purchase of the book, as it is a very well researched and detailed offering.

Southern, Union Pacific, Santa Fe, both Canadian transcons and the Southern Pacific were huge purchasers of this car design.

Wish everyone a safe and very well day.

-Andy Carlson

Ojai CA