Jerry,
I think the Erie car, like the LN cars of with 10 sec 1 DR and 2 DBR, may be a 4074 rather than a 4042. You are the expert, but a quick check of files on my computer indicates that a 4042 is
10 sec 1 Cmpt 2 DBR ("College" series)
According to the passenger car roster here:
http://www.rr-fallenflags.org/el/pax/erie-1954.html Erie had one car of that arrangement
H - 10 Sec, 1 DR Rm, 2 DB BR - Scenic Island
It also shows up in the 1947 consist for the Erie Limited that is shown on the wiki page
https://en.wikipedia.org/wiki/Erie_Limited (still under Pullman ownership, I assume, in 1947)
June 2 1947
Location Jamestown, New York
Train Westbound No. 1
4-6-2 No. 2935
No. 575 baggage-express
No. 529 baggage-express
No. 609 baggage-mail
No. 1008 coach
No. 2205 coach
No. 2256 coach
No. 946 diner-lounge
Scenic Island sleeping car (10 sections, 1 drawing room, 2 double bedrooms)
American Life sleeping car (6 sections, 6 roomettes, 4 double bedrooms)
Telos sleeping car (12 sections, 1 drawing room)
They had 2 other cars with "Scenic" names that were 6-4-4 rebuilt heavyweights.