If there is a date of one year, the date comes from a city directory, state gazetteer or a date written on the back of a photo by that particular photographer.
If there is a date of two years, the date comes from a city directory, state gazetteer, or the presence of a tax stamp which makes the estimate of the dates based on the years that stamps were applied to the back of cartes de visite.
Span of Years
If the date has a span of more than year, this is an estimate of the date of an image found by that particular photographer.
If the date has an "s" after it, it is an estimate/indicates a decade when a photographer by a particular photographer was made based on the analysis of a photograph.
All images, lists and information on this website are the property of Langdon & Langdon 2020 unless otherwise stated.
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All images, lists and information on this website are the property of Langdon & Langdon unless otherwise stated.