Helen L. Gilson, also known as Helen Louise Gilson Osgood, Civil War nurse and head of the Colored Hospital Service. (5/31)

She cared for wounded and dying soldiers at battles including Yorktown, Antietam, Gettysburg, Fredericksburg, Chancellorsville, and Petersburg and advocated for a better hospital for African American soldiers and the creation the Colored Hospital Service, of which she became the head until the end of the war