Henry James, c. 1860, age 17.
From the submitter Katie Sommer:
Hello MDB. I am the associate editor for The Complete Letters of Henry James (ongoing; U of Nebraska Press). Here’s a photo of an extremely handsome young (18 years old or so) Henry James. The photo dates from 1860 or 1861 when his family was in Newport, RI, and the original is at the Houghton Library at Harvard University (pf MS AM 1094).