The collection consists of research material on Oregon, northern California, and northwestern Nevada logging and freight railroads, logging companies and mills in the area, correspondence, drafted maps, images, DVDs and maps. Jack Bowden (John Curtis Bowden) translated a life-long love of railroads into a career with the Southern Pacific Railroad, two books and a research collection created over 60 years.

Carrol Howe was a Klamath County educator, state representative, writer and an active member of the community. Collection contains a scrapbook with materials related to Carrol Howe's service as State Representative from Republican Party.

Materials about the Fairclo Family were donated by their oldest daughter Marjorie F. Brissenden. Content date range for this collection is: 1850-2009. Jay A. Fairclo was born July 1st, 1895, in Yreka. He moved to Klamath County in the early 1900s, before serving in the Army during WWI. He served in Mt.Laki Community Church and School Board. Grace was born in 1895 and had met Jay when visiting from Kansas to see her aunt.

Klamath Water Crisis occurred in 2001, after an extreme drought. The Bureau of Reclamation failed to supply water to the local farmers, keeping it in Upper Klamath Lake to protect the habitat of the endangered suckerfish. Collection contains miscellaneous correspondence and documentation on the Klamath Basin Water Crisis of 2001.

The Klamath Forest Protective Association is a non-profit representing all private forest landowners in the Klamath-Lake District of Oregon. The collection consists of the organization’s records assembled in 2008 to mark its centennial anniversary.

James Robert Ottoman, born in 1926, was a retired farmer who worked in Klamath County, Oregon, as well as both Modoc and Tulelake counties in California for 65 years. Collection contains miscellaneous materials from the Medford, Oregon, office of the BLM: documentation, correspondence, and brochures, donated by James Ottoman.

David A. Ross is a Certified Wildlife Biologist with the Wildlife Society. He moved to Klamath Falls in April 1999 to work for the U.S. Fish and Wildlife Service. Collection contains assorted materials donated by David Ross, on riparian and wetlands issues in the local area.