Diana Mara Henry photographed some of the most important events in the women’s movement, including the iconic image of the march to the First National Women’s Conference in Houston. While studying at Radcliffe, Henry began working as a photographer for the Harvard Crimson, and she worked at NBC News before becoming a freelance photographer. She photographed Elizabeth Holtzman’s campaigns for Congress and Congresswoman Bella Abzug’s campaign for the Senate. Abzug was so taken with her work that she made Henry the official photographer for the First National Women's Conference in 1977. Henry captured the historic march to the conference by running backward while shooting photos. For over 30 years, she also wrote and lectured extensively on the Natzweiler-Struthof concentration camp. Henry has taught photography at several schools, including the International Center of Photography in New York, and has exhibited at the Women’s Hall of Fame and the Overseas Press Club in New York, among others. Though she no longer takes photography assignments, as of 2024, she publishes and exhibits her photographs online, and her work continues to be exhibited in museums, galleries, and universities.