Untitled (Portrait of David and Christianna Palmer with daughters Sophia Magdalena, Christianna, and Regina A. Frederick)
1847 · Daguerreotype
17 × 15.8 cm (6 3/4 × 6 1/4 in.); Open case: 18.3 × 34 × 1.3 cm (7 1/4 × 13 7/16 × 9/16 in.); Case: 18.3 × 17 × 2.1 cm (7 1/4 × 6 3/4 × 7/8 in.); Plate: 17.2 × 15.8 cm (6 3/4 × 6 3/16 in.)
Art Institute of Chicago