Cyrus Hall McCormick Correspondence and Subject File, 1788-1939

Arrangement of the Materials

Organized in four series: 1A consists of correspondence received, 1788-1939; 2A consists of a subject file, 1811-1884; 3A consists of letterpress copy books, 1867-1884, focusing on business matters; and 4A consists of letterpress copy books, 1869-1882, focusing on politics, religion, and mining.