The most significant collection of letters extant on the subject of the Central Pacific is contained in the Hopkins-Huntington
correspondence. Some 2,500 letters and documents in 14 volumes cover the years 1860-1885 and are concentrated on the years
1872-1876. The letters are from Collis P. Huntington to Mark Hopkins, Leland Stanford, Alfred A. Cohen, and others. Several
volumes contain correspondence between E. B. Crocker, Alfred A. Cohen, W. C. Ralston, E. E. Hewitt and Mark Hopkins.
While Special Collections is the owner of the physical and digital items, permission to examine collection materials is not
an authorization to publish. These materials are made available for use in research, teaching, and private study. Any transmission
or reproduction beyond that allowed by fair use requires permission from the owners of rights, heir(s) or assigns. However,
most of these materials are believed to be in the public domain. There are no restrictions on use of public domain materials.
Open for research. Note that material must be requested at least 36 hours in advance of intended use.