These letters give a brief glimpse into the mining business in the early Nineteenth Century. Alexander McIntyre to whom these letters are addressed was an ambitious entrepreneur in the coal and iron country of New York and Pennsylvania with his name being passed on to many sites in these states.

A collection of financial records, including receipts, bills, statements, etc., in four separate Estate Accounts, administered by the trustees of the estate of Asa Packer, and Lehigh University covering the period May 1879 through 1972.