Direct positive photographic processes produce unique images, captured without a negative. Various direct positive processes are represented in this selection of 19th-century portrait photographs, including daguerreotypes, ambrotypes, ferrotypes or tintypes, and salted paper prints.

1.
  • A woman's portrait, vignetted.

2.
  • [African American boy with hat, half-length portrait].

3.
  • Richard Willats album [graphic].

4.
  • Mary Agnes Maclean as a toddler.

5.
  • [African American man with mustache, half-length portrait].

6.
  • [Daguerreotype portrait of Lucretia Mott, ca. 1849.]

7.
  • [African American woman with fur collar, bust portrait].

8.
  • Edward House.

9.
  • [African American man with mustache, three-quarter-length portrait].

10.
  • [African American girl with white dress, half-length portrait].

11.
  • [African American man with book, three-quarter-length portrait].

12.
  • Portrait of a young man.

13.
  • [African American man with mustache, blue jacket and hat, half-length portrait].

14.
  • Portrait of an unknown man.

15.
  • Portrait of unknown seated man.

16.
  • [African American man with striped collar, bust portrait].

17.
  • [African American man with brown jacket and vest, half-length portrait].

18.
  • Portrait of a man.

19.
  • George de la Matyr and wife Kate.

20.
  • Portrait of Sally Rice, Bourbon, Georgia.

21.
  • Portrait of an unknown bearded man.

22.
  • William Makepeace Thackeray.

23.
  • [African American man with mustache, bust portrait].

24.
  • John de la Matyr.

25.
  • Standing portrait of an unknown boy.

26.
  • Portrait of a young woman [#1].

27.
  • Portrait of a woman.

28.
  • [African American woman with black dress and white scarf, bust portrait].

29.
  • [African American woman with white smock, half-length portrait].

30.
  • Family portrait with elderly couple, young couple, and infant.

31.
  • Portrait of a beautiful young woman.

32.
  • [African American woman with grey dress and white collar, bust portrait].

33.
  • Portrait of a man.

34.
  • [African American woman with grey dress and white scarf with flowers, bust portrait].

35.
  • [Serious young man holding photographic book].

36.
  • [Portrait of an African American woman wearing plaid dress].

37.
  • Jane de la Matyr Chester.

38.
  • Portrait of an old man.

39.
  • Steven Cottman.

40.
  • Portrait of a young woman [variant of #1].

41.
  • Group portrait of three sisters.

42.
  • Caesar, an officer's servant near Washington.

43.
  • [African American woman with black dress, white collar and brooch, half-length portrait].

44.
  • Portrait of an unidentified man.

45.
  • Portrait of a man.

46.
  • Elias de la Matyr.

47.
  • [African American girl with plaid dress, full-length portrait].

48.
  • Sergeant David Davidson, Maryland 7th Regiment.

49.
  • [African American man with brown jacket and black tie, bust portrait].

50.
  • [African American infant with white dress, full-length portrait].