Henry Alexander Ogden (1856-1936), also known as H. A. Ogden, was an American illustrator renowned for his historical and military subjects. Born in Philadelphia on July 17, 1856, he later moved to Brooklyn, New York, where he received his initial art training at the Brooklyn Institute and the Brooklyn Academy of Design. At just 17, Ogden began working with Frank Leslie’s Illustrated Newspaper, which allowed him to travel extensively across the United States and Europe. His visit to the American West in 1877 resulted in over 200 illustrations. As a freelance artist, he contributed numerous historical scenes to various newspapers and magazines. However, his most ambitious project was documenting the uniforms of the United States Army. Between 1890 and 1907, Ogden meticulously depicted uniforms worn from 1774 to 1888 in his series “Uniforms of the United States Army.” His watercolors captured the evolution of military attire, and his work was used in official army regulations. Beyond his uniform series, Ogden was a prolific illustrator for books, including “The Pageant of America.” His expertise in colonial costume made him a leading authority in the field. He lent his advice to historical pageants and left a lasting legacy in American art and military history.