Charles Salagnad made this drawing in 1872, during a phase of renovations at the now-famous Newport mansion, Château-sur-Mer.  The house was built two decades earlier for the wealthy China trader William Shepard Wetmore (1801-1862). Wetmore’s newly married son, George Peabody Wetmore, commissioned one of Gilded Age society’s preferred architects, Richard Morris Hunt, to transform his late...