Thomas Eakins as a young boy, 1850.

Thomas Eakins as a young boy, 1850.

Daguerreotype portrait of William Austin Dickinson, attorney and older brother of the poet Emily Dickinson, early 1850s.
Source:  Todd-Bingham Picture Collection and Papers, Yale University Manuscripts & Archives Digital Images Database

Daguerreotype portrait of William Austin Dickinson, attorney and older brother of the poet Emily Dickinson, early 1850s.

Source:  Todd-Bingham Picture Collection and Papers, Yale University Manuscripts & Archives Digital Images Database

John William Draper, Dorothy Catherine Draper, June 1840.

John William Draper, Dorothy Catherine Draper, June 1840.

Daguerreotype Gallery of Thomas Martin Easterly, St. Louis, Missouri, 1851.
Source: Missouri History Museum

Daguerreotype Gallery of Thomas Martin Easterly, St. Louis, Missouri, 1851.

Source: Missouri History Museum

Daguerreotype of Emily Dickinson at Mount Holyoke College, South Hadley, Massachusetts, December 1846.
Source:  Todd-Bingham Picture Collection and Family Papers, Yale University Manuscripts & Archives Digital Images Database

Daguerreotype of Emily Dickinson at Mount Holyoke College, South Hadley, Massachusetts, December 1846.

Source:  Todd-Bingham Picture Collection and Family Papers, Yale University Manuscripts & Archives Digital Images Database

Edward “Eddie” Lincoln, second son of Abraham Lincoln and Mary Todd Lincoln, 1850.

Edward “Eddie” Lincoln, second son of Abraham Lincoln and Mary Todd Lincoln, 1850.

Daguerreotype of Annie Adams Fields, 19th century.

Daguerreotype of Annie Adams Fields, 19th century.

Charles Sherwood Stratton, aka General Tom Thumb, daguerreotype, ca. 1848.
Source: The Metropolitan Museum of Art

Charles Sherwood Stratton, aka General Tom Thumb, daguerreotype, ca. 1848.

Source: The Metropolitan Museum of Art

Man with a Key, USA, ca. 1844.
Source: Getty Museum

Man with a Key, USA, ca. 1844.

Source: Getty Museum

Postmortem Portrait of a Baby, USA, 1856-1860.
Source: Getty Museum

Postmortem Portrait of a Baby, USA, 1856-1860.

Source: Getty Museum