Correspondence, contracts, financial records, and other materials related to the incorporation and operation of the B&MRR-Nebraska, and its consolidation with CB&Q. Also includes a Decade Subject File subgroup, organized similarly to the Decade Subject Files in Record Group 33, but containing materials specific to the B&MRR-Nebraska.

The two Correspondence subgroups contain incoming and outgoing letters between officials of the B&MRR-Nebraska, including J. W. Brooks, C. E. Perkins, G. W. Holdredge, George Tyson, and others. Content includes finances, expansion, personnel, consolidation, and other railroad operations and general business. The Records and Contracts subgroup contains Annual Reports, corporate records, contracts for construction, agreements with other roads, and circulars. The Decade File subgroup contains three series containing materials from the 1870s, 1880s, and 1890s, organized in a similar way as Record Group 33, including Statements, Equipment, Personnel, Legal, Contracts, New Lines, and Miscellaneous. There is extensive documentation of the connection at Kearney Junction with Union Pacific in the Decade Files. The Auditor's Office subgroup contains ledgers, journals, cash books, statements, and other materials from the auditor's office, primarily related to construction but also car service, freight, and personnel. The final two Securities subgroups are ledgers and papers related to stocks and bonds.

Land Department papers for the B&MRR-Nebraska are found in Record Group 7, Subgroup 76.

Forms part of the Chicago, Burlington & Quincy Railroad Company Records.

This finding aid supersedes the Guide to the Burlington Archives in the Newberry Library, 1851-1901 (Chicago: Newberry Library, 1949), and incorporates subsequent additions to the company records. Certain materials have been deaccessioned and donated to the Burlington Route Historical Society; see curator for details.