Whenever letters are posted, unless they are the property of the poster, it is imperative that the source be cited. I know it was an oversight. The appropriate citation for the wonderful Dalton collection is "Dalton Family Collection, South Caroliniana Library, University of South Carolina." It includes Mss copies of the letters of Amos H. Dalton, Lewis Rector Dalton, Smallwood Dalton, and W. J. Darby.