The John Stanton Collection is comprised of 45 black and white pictures of Great Northern steam engines. Some have two pictures per print.
The John Robinson Collection is comprised of 10 Great Northern Railway passenger train timetables and 1 system passenger train timetable.
The John Phillips III Collection is comprised of copies of "Talking It Over", a Pullman towel, a seatback cover, Annual Pass request forms, Train Service timebooks, a pad of Great Northern Railway telegram forms, and a Track Location Diagram for Minneapolis and Saint Paul, Minnesota..
The contents of the John Mercer Collection were unrecorded at the time of accession.
The John Luecke Collection is comprised of Great Northern Railway drawings.
The John Gardner Collection is comprised of steam locomotive roster photos, electric locomotive roster photos, diesel locomotive roster photos, gas electric locomotive photos, work equipment photos, traction photos, and West photos.
The John C Thomas Collection is comprised of a book - "Railroad History #143", and a book of Great Northern Railway Joint Facility Diagrams (track), a book:The Montana Central Railways, a picture of the Sidney, Montana depot (perhaps built by the Montana Central).
The Joel C Janetski Collection is comprised of Great Northern Railway related materials, time tables, rule books, instruction books, and various forms related to the Great Northern .
The contents of the Joan Haas Collection were unrecorded at the time of accession.
The contents of the Joan Dolan Collection were unrecorded at the time of accession.