James Boswell died in 1795 believing he had touched and kissed a cache of Shakespeare's original letters and papers discovered by a Mr. Ireland. His friend, Edmond Malone, publicly exposed the lot as a forgery just a year later.
Life with Boswell:
Boswell visited Mrs. McQuhae and her husband at Wigtown on September 29, 1762, them being the parents of his friend William McQuhae. He described her as "a smiling, sweet-tempered, active woman".