File talk:1945.jpg
[http://www.nga.gov/content/ngaweb/research/casva/research-projects.html A Project of the National Gallery of Art, Center for Advanced Study in the Visual Arts ]
Permission granted 5/6/2016
From NPS site: Daguerreotype of the Old House by early photographer John Adams Whipple, 1849 Charles Francis Adams wrote in his diary, March 19, 1849: "Soon after breakfast M. Whipple, the maker of Daguerrs called to show me the results of his experiment of Saturday. On the Old Mansion he has been remarkably successful."