Wow, Spontaneous, I'd never heard of the calotype. Daguerreotype backgrounds are usually, but not always, dark, so it's possible that the photograph of lace shawl woman is a calotype. The first studio in New York to produce that technology was established in 1853: http://www.nyhistory.org/exhibitions/victor-prevost-early-photographs-new-york
Go "Back to the '70s" with The Maplewood Glee Club and Special Guests from CHS
May 19, 2024 at 4:00pm
Those are not online??
Interesting detective work. I have some similar research going on here, with photos found at my mother's house.