daguerrotype: Is a photograph taken by an early process employing an iodine- sensitized silvered plate and mercury vapor.

Albumen prints: are a variety of photographic paper print in which a finely divided silver and gold image is dispersed in a matrix of egg white.

Stereograph: Is any technique capable of recording three-dimensional visual information.

cartes de visite: Small photograph that can be sent through mail

Matthew Brady and Alexander Gardner: Filmed the war