Commander William Lewis Herndon (25 October 1813 – 12 September 1857) was one of the United States Navy's outstanding explorers and seamen. In 1851 he led a United States expedition to the Valley of the Amazon, and prepared a report published in 1854 and distributed widely as Exploration of the Valley of the Amazon. He was noted especially for ensuring the rescue of 152 women and children when commanding the commercial mail steamer Central America in September 1857. During a three-day hurricane off the coast of North Carolina, the ship lost power. Herndon arranged for getting some women and children safely off the ship to another vessel. With no way to save the ship, Herndon chose to stay with more than 400 passengers and crew who drowned as the ship sank off Cape Hatteras on September 12. It was the largest loss of life in a commercial ship disaster in United States history. Two years later his daughter Ellen Lewis Herndon married Chester A. Arthur, the future U.S. president. Early life and family William Lewis Herndon was born in Fredericksburg, Virginia. He married Frances Elizabeth Hansborough and they had a daughter, Ellen Lewis Herndon (future wife of Chester A. Arthur), born in Culpeper Court House, Virginia. His great-niece was the novelist Lucy Herndon Crockett. Naval service Herndon was appointed midshipman on 1 November 1828. He was promoted to passed midshipman in 1834 and lieutenant in 1841. He cruised in Pacific, South American, Mediterranean, and Gulf waters from then until 1842. From 1842 to 1846, Herndon served in the Depot of Charts and Instruments of the US Naval Observatory with his first cousin and brother-in-law, Matthew Fontaine Maury. They prepared oceanographic charts and performed other scientific work invaluable to the safe and accurate navigation of the seas. During the Mexican–American War, Herndon commanded the brig Iris with distinction. Exploration of the Amazon In 1851 Herndon headed an expedition exploring the Valley of the Amazon, a vast area uncharted by Europeans, although inhabited for thousands of years by numerous tribes of indigenous peoples. The purpose of the expedition was to ascertain the commercial resources and potential of the valley. Departing Lima, Peru, 21 May 1851, Herndon, in the company of Lieutenant Lardner Gibbon and five other men, pressed into the jungles. After crossing the Cordilleras, Gibbon separated to explore the Bolivian tributaries of the Amazon while Herndon continued to explore the main