Lieutenant Edward F. Sitgreaves was a notable figure in the United States Navy during the 19th century. He is best known for his role in the American Civil War, where he served with distinction. Sitgreaves was involved in various naval operations, contributing to the Union's efforts in the conflict. In addition to his military service, Sitgreaves is recognized for his work in hydrography, which involves mapping and studying bodies of water. His contributions helped improve navigation and maritime safety, showcasing his dedication to both military and scientific endeavors throughout his career.