Mr. Kelly, Yes, you're clearly correct in saying our anonymous Harriet isn't Harriet Lane Levy (alias Hattie). We'll have to see if Mark Twain's autograph note is still with her papers downstairs! Anyway, thanks for the lead. We hadn't found this letter ourselves, but as Barb says, there are clearly hundreds if not thousands of such hidden letters out there. We can use all the help we can get! Bob