The correspondence of Washington Allston / Nathalia Wright, editor. (OCLC #897474403)

RDA 6.2.2.10.2 on Complete Works in a Single Form says to record a conventional collective title as the preferred title for a compilation of works that consists of, or purports to be, the complete works of a person in one particular form (such as their correspondence). In MARC, this is recorded in the 240:

100 1_ ǂa Allston, Washington, ǂd 1779-1843.
240 10 ǂa Correspondence

The title of the particular manifestation is also recorded, in the 245:

245 14 ǂa The correspondence of Washington Allston /
  ǂc Nathalia Wright, editor.