A ragtag group of women protesting behind a police line in the rain. A face in a crowd holding a sign that says, "Hi Mom, Guess What!" at a gay rights rally. Two lovers kissing under a tree. These indelible images are among the thousands housed in the New York Public Library's archive of photographs of 1960s and '70s LGBTQ history from photojournalists Kay Tobin Lahusen and Diana Davies. Lahusen is a pioneering photojournalist who captured pivotal...