Had a wonderful turnout at the Dane County Genealogical Society meeting today. Our Speaker Program done by an Archvist at Wisconsin Historical Society, who spoke on the history/science of Photography, history of photography matting, dating of photographs by fashion, ceremony or special occasions during the 19th and early 20th century. She also provided resource suggestions to further your knowledge on the topic.

1. Daguerreotypes (circa 1839)
2. Ambrotypes (circa 1854)
3. Tintypes (circa 1855)
4. Carte de Visite or CDVs (ca 1859)
5. CabinetCards (circa 1870)

Albumen Print
Learned that albumen found in egg whites was used to bind the photographic chemicals to the paper and became the dominant form of photographic positives from 1855 to the start of the 20th century.