Railroad historical society providing information about the Chicago Burlington and Quincy, Colorado and Southern, Fort Worth and Denver Railroads, collectively known as the Burlington Route.

Dedicated to preserving the railroad history of Warren County and surrounding areas.

Dedicated to the preservation of the history of the railroads that have operated in New Jersey, with emphasis on the New Jersey Midland and its successor New York, Susquehanna Western.

Historical society dedicated to preserving the history of the Missouri - Kansas - Texas Railroad, also known as the Katy.

Historical society dedicated to the preservation and dissemination of the history of New Jersey railroads.

Dedicated to the preservation of Canadian National Railway steam locomotive 6060.

Railroad historical society focusing the New York, New Haven and Hartford Railroad Company and its predecessors.

Historical information on the Missouri Pacific Railroad, Texas and Pacific Railroad, Chicago and Eastern Illinois Railroad and subsidiaries.

Dedicated to preserving the heritage of the Middletown Unionville & Water Gap, Middletown & Unionville, Middletown & New Jersey and other area railroads.

Non-profit corporation that preserves, distributes and publishes information about the Chicago, Rock Island and Pacific Railroad, its predecessors and affiliated companies.