Scope and Contents From the Series: The correspondence files consists of incoming and outgoing letters, some arranged chronologically, others by subject. The managers letters are letters from the manager of the mine in Kellogg to the president of the company in San Francisco, detailing the operations of the mine, union activities, and related information. In 1892 the letters were from V.M. Clement to John Hayes Hammond; letters for 1893 are lacking; 1894- 1896 are from F.W....