Personal papers, chiefly family correspondence with a number of letters from friends and acquaintances mingled in. Most letters are arranged in hard-bound folders probably prepared by Ruffin himself. Folders are identified by unit numbers. Units 1-16 contain largely routine family letters; Units 17-20 have non-family letters on a variety of topics; Unit 21 contains letters from James H. Hammond; Unit 22 consists of 145 unbound family and non-family letters arranged chronologically; and Unit 23 consists of undated and miscellaneous materials. There are also six volumes, including a farm diary, Ruffin's autobiography, a Revolutionary War tale by Ruffin, an 1843 diary with entries relating to an agricultrual survey of South Carolina, and an account of the draining of a plantation.