1. Who was Sarah Findlay? By Mark Twain. With a suggested solution of the mystery by J.M. Barrie. Creator: Twain, Mark, 1835-1910 Published / Created: April, 1917. Call Number: Ip B276 W49 Image Count: 20 Found in: Beinecke Rare Book and Manuscript Library > Who was Sarah Findlay? By Mark Twain. With a suggested solution of the mystery by J.M. Barrie.