Collection includes account books of James Monroe Blossom (1817-1891) from a general mercantile store at Boise, Idaho, 1864-1866; account books of James Monroe Blossom, Jr. (1853-1918), relating to grocery and clothing sales in Douglas County, Oregon, 1871-1873; docket books from an unidentified Oregon circuit court, probably that of Jackson County, 1861-1881; and a ledger of mining claims in Jackson County, Oregon, 1853-1856.