A Man Posing With the Tombstone of Aaron Burr in Princeton Cemetery in Princeton, New Jersey (1850′s)

A man posing with the tombstone of Aaron Burr in Princeton Cemetery in Princeton, New Jersey, c. 1850′s. By Frederick De Bourg Richards.

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Hand-Colored Daguerreotype Portrait of Two Men Posing With the Headstone of a Recent Grave (1853)

Hand-colored daguerreotype portrait of two men posing with the headstone of a recent grave, location unknown, 1853.

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Daguerreotype of an Unidentified Man Posing Behind the Grave of Robert Barnard in San Francisco, California (1856)

Daguerreotype of an unidentified man posing behind the grave of Robert Barnard in San Francisco, California, 1856. By J. M. Ford.