Of course, the two interurban lines that ran sleepers, the Interstate between Indianapolis and Louisville, operated by the Indiana RR after it assumed operations in 1931 but discontinued after about a year, and the Oregon Electric between Ogdon and Payson, but no through service over the Bamberger to Salt Lake City, wonder why. The OE cars ended up as sleepers for the Pacific Great Eastern, which also ran its own sleeping cars. Also didn’t both the CN and CP except into the USA?
Georgia RR operated its own cars Atlanta-Augusta, Pullmans interline on some other routes.
Soo’s interline services with CP were railroad operated, with joint cars over the MILW (Chicago-Sault Ste. Marie) operated by Pullman. In an interesting twist the Chicago-Calumet MI Copper Country Limited was a Pullman line MILW and DSS&A until the Soo Merger in 1961, then was the Soo’s sole Pullman line until the MILW took over sleeper operation in 1965 or so. The “City” trains’ sleepers were operated by UP after the end of Pullman service in the late 1960s. Both Soo and Milwaukee cars were listed in the Pullman car lists.
Both AT&SF (Super Chief) and CB&Q (Denver Zephyr) had prewar Budd-built sleepers owned by the railroads but operated by Pullman under contract. The DZ cars triggered the 1940 antitrust lawsuit.
I can remember as a little kid when my father would read books about trains to me and my brother, he would stop and make a point that on CP Sleeping Cars were not Pullman Cars, but were to be called Sleeping Cars or Sleepers.
As a side note we were also taught that in England they called ties, sleepers.
And Pullman cars in England are or were what we called Parlor Cars -exceptt hat seating was 1 and 2 facing small ables and tea or coffee and biscuits were always served. There were all-Pullman deluxe trains, such as Southern Ry’s Brighton Bell (MU) and Bournmouth Bell (Steam).