Below is a list of links to photographic processes and links to sites which I’ve used over the years to help date my own personal photographs. These maybe helpful to you if you are tracing your family tree and have old photos of family members you are not sure of.
CLUES IN PHOTOGRAPHS
George Eastman House – Good video series on photographic processes.
Good way to identify a location.
Fashion Styles through the years
Good tips again on fashion styles and photo styles.
Daguerrotype Photo Conservation
What work goes in to a colourised photo.