This was an ordinary family photo from 1872, but let’s take a closer look at the family.

Who would have thought that a simple sepia-toned photograph, hidden in a filing cabinet, would hold a secret that could shatter 150 years of obscurity? At first glance, it simply depicts a family posing solemnly against a wooden backdrop, like so many other postwar portraits. But one day, the historian might be reconnected with the little girl… and everything changes: this …