the Thoreau Log.17 January 1857. Concord, Mass.Thoreau has an ambrotype taken, documented by Ellen Emerson in a letter to her father:
Mr Thoreau has been here twice this week, once to dinner and once to tea. He went to have his Ambrotype taken to-day, and such a shocking, spectral, black and white picture as Eddy brought home in triumph was never seen. I am to carry it back and poor Mr Thoreau has got to go again (ETE, 1:125).