I have a box of unidentified photos. I'll never know who the people are, but am interested in the era the photos might have been taken. Does anyone know the name of some of the photo studios that were in business during the era of the 1890s, all the way to 1940s ? I have one photo that is imprinted with John M Cole, Harbor Beach Michigan. Also have several that are imprinted with Jas. L Duck, Caro & Sebewaing. Thank you for your feedback.