Northern Refrigerator

Company History: Northern Refrigerator Line (reporting mark NRC) began as a subsidiary of the Cudahy Packing Co. and was spun off in 1922 as Northern Refrigerator Car Company. In 1928, NRC was purchased by Merchants Despatch but continue operating as a separate entity. Merchants Despatch formally absorbed NRC in 1962, but cars retained their NRC reporting marks.
The bulk of the fleet was Pullman 40' Wood Reefers following the USRA design with steel fishbelly underframes, built in the 1920s.

Successor/Parent History: Merchants Despatch Transportation called East Rochester, NY home and most of its railroad cars were built there starting in 1898. Here are several illustrations scanned from a 1928 MDT 12-month calendar showing some of the different cars and specifically refrigerator cars that were built by MDT for different purposes.

The Merchants Despatch Transportation Company (MDT, also known as the Merchants Despatch Refrigerator Line) was established in 1857 or 1858 by the American Express Company of New York (then a freight forwarding service). The entity was reformed as a joint stock trading company on June 1, 1869, with ownership divided among the Cleveland, Columbus, Cincinnati and Indianapolis Railway (CCC&I), the Lake Shore and Michigan Southern Railway, and the New York Central Railroad (NYC), all part of the Cornelius Vanderbilt rail empire.

From Wikipedia

Brief History: The U.S. is a country of 50 states covering a vast swath of North America, with Alaska in the northwest and Hawaii extending the nation’s presence into the Pacific Ocean. Major Atlantic Coast cities are New York, a global finance and culture center, and capital Washington, DC. Midwestern metropolis Chicago is known for influential architecture and on the west coast, Los Angeles' Hollywood is famed for filmmaking.