Copy of a correspondence between Edmund Jackson & Hon. Robt. C. Winthrop in 1840

Manuscript copy of a correspondence between Edmund Jackson and Hon. Robert C. Winthrop, in which Jackson asks for Winthrop's position on slavery before his election to United States Congress. Includes Winthrop's response dated November 2, 1840, in which he replies that he "cannot regard it as desirable or expedient to attempt any alteration of the Constitution in relation to slavery."