*How could multiple experts on Nightingale get this detail wrong? It’s unclear who first made the error, but once made, it spread. I’ve repeated the mistake myself in an article for the Financial Times. My first inkling that there was a problem was when I consulted a biography of the far-less-famous William Farr, which says the letter was written to Farr, not by him. I contacted the wonderful archivists at the British Library and discovered that the letter in question is an unsigned draft; the final version is lost. The draft is in the handwriting of Dr. John Sutherland, a close collaborator of Nightingale who would often draft for her and may have been taking dictation. It was definitely intended for Farr. Even if it was not dictated by Nightingale, it likely reflected her views closely. Professor Lynn McDonald, the editor of a multivolume collection of Nightingale’s work, explained to me, “She, perhaps, wrote her own version and sent it, but evidently such letter has disappeared. [Sutherland and Nightingale] saw eye to eye—they are her views, AND his” (McDonald, email correspondence, May 31, 2019).