The papers consist of local history materials, records of business affairs in Wisconsin and Mexico, correspondence while state supervisor of illuminating oils, 1894-1900; and monthly reports of subordinate district oil inspectors, 1895-1897. The latter correspondence concerns appointments of these inspectors, and the gubernatorial campaigns of 1894 through 1900, and throws light on the relations between Tanner's office and the Standard Oil Company. There is correspondence and printed material, 1901-1908, concerning the management of the Rio Tamasopo Sugar Company in San Luis Potosi, Mexico, a company in which Tanner and a brother were financially interested, and correspondence, bills, and receipts, 1899-1903, connected with Tanner's operation of a Kaukauna drug store. Filed with the papers is a box containing documents from the office of a notary public near Mexico City dealing with lawsuits, 1739-1865; registers of electors in Kaukauna in 1896; and a ledger, 1894-1897, of a firm of Kaukauna druggists.
