I saw this on MyHeritage recently The Oldest People Ever Photographed: https://blog.myheritage.com/2021/06/the-oldest-people-ever-photographed/. Longer article.
by Esther June 3, 2021 Photos
How old is the oldest ancestor you have a photo of?
Many of us are lucky to uncover photographs of our ancestors from the early 20th century, and even luckier to find photos from the late 19th century. That means that the earliest photographs most people may have access to feature ancestors born sometime in the 1800s.
Photography as we know it was invented in the late 1830s, and became popular throughout Europe. It took a while for the trend to be adopted in America, however. A man named Matthew Brady, who witnessed the new daguerreotype method of developing photos when it was invented in France, brought the technique to the United States and began introducing it to the American public. He opened a photography studio in New York in the mid-1840s, and found that people were reluctant to have their photos taken. Eventually he found his clientele: mostly younger people keeping up with the European trend. However, some of his subjects were elderly people — distinguished members of society who agreed to pose as models to preserve their presence in the world and celebrate the bond they had with their life partners.