Daguerreotypes (ca 1839) Photography arrived in the United States in 1839 thanks to Samuel F. B. Morse, an American artist and inventor.
Ambrotypes (circa 1854) The ambrotype was a glass negative backed with black material, which enabled it to appear as a positive image.
Tintypes (circa 1855) The Ferrotype process (tintypes) was introduced in the United States in 1855.
Carte de Visite or CDVs (ca 1859) CDV stands for carte de visite, a photographic calling card. The CDV process, which began in France in 1854, involved a special camera that produced eight poses on one negative. The CDV produced a card the size of the then standard calling card, around 2.5 by 4".
Cabinet Cards (circa 1870) CDV’s were eventually replaced in the 1870s by the larger Cabinet Cards which used the same photographic process but were on a larger 4 by 6" card.
Read more and see examples of each type of photograph at
Types of Early Photographs