There is also a letter from Orion Clemens to SLC circa 9 Dec 1877 that included another news clip that I have not been able to locate detailing Orion’s efforts to get to the bottom of the fraud. Fears mentions this in his Vol. 1 online at https://daybyday.marktwainstudies.com/vol-1-section-0035/ One probably needs to see Orion’s letter and the news clip he sent to understand SLC’s reference to “Sir John Franklin.” Neither appear to be available online. Barb