The Kohrs and Bielenberg Records include three subgroups. The Kohrs and Bielenberg Subgroup contains interoffice correspondence (1913-1920) between Bielenberg and Conrad Kohrs, primarily dealing with business matters, and financial records (1892-1918) pertaining to the Deer Lodge ranch operation. The Conrad Kohrs Estate Subgroup consists of general correspondence (1920-1928) chiefly to and from Samuel McKennan, executor of the estate; and financial records (1920-1928) pertaining to properties held by the estate. The John N.W. Bielenberg Estate Subgroup consists of general correspondence (1924-1927) of the executors Samuel McKennan and R.O. Kaufman and others, court papers (1922-1927), financial records (1922-1927), legal documents (1921-1922), and miscellany (1922-1926). A list of maps transferred to the Library is included in each subgroup.