Letters written by John Payne Collier, mostly from later in his life. Also, newspaper clippings about the forgery controversy. Items not collected together until Folger staff created this collection.

The Letters of Mary Hatton Helsby consists of ten letters, 1651-1668 and thirteen newspaper clippings reproducing Hatton Helsby's correspondence, ca. 1900. The collection includes letters from both sides of the courtship between Mary Hatton Helsby and her eventual husband, Randolph Helsby, several containing commentary critical of both Royalist and Parliamentary factions.