[Untitled], c. 1850, Daguerreotype, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/27491 Alexander Hamilton Stephens, c. 1846, Quarter-plate daguerreotype; Image/Plate: 10.5 x 8.2cm (4 1/8 x 3 1/4"); Case Open: 11.9 x 19.1 x 1.6cm (4 11/16 x 7 1/2 x 5/8"), National Portrait Gallery, Washington, D.C. https://dartabase.art/cite/smithsonian/ld1-1643399756728-1643399804488-1 Platt D. Babbitt, Untitled (Niagara Falls), c. 1853, Daguerreotype, Art Institute of Chicago, Chicago. https://dartabase.art/cite/aic/33540