US Exploring Expedition (Wilkes Expedition)

US Exploring Expedition (Wilkes Expedition)
Name	Wilkes Expedition
Other names	United States Exploring Expedition
Dates	1838–1842
Leader	Charles Wilkes
Sponsor	United States Navy
Objectives	Exploration, surveying, scientific collection
Ships	USS Vincennes, USS Peacock, USS Porpoise, Flying Fish (brig) , Relief (sloop) , Sea Gull (sloop)
Outcome	Antarctic discovery, Pacific surveys, extensive natural history collections

US Exploring Expedition (Wilkes Expedition) was a four-year United States naval and scientific voyage (1838–1842) commanded by Charles Wilkes that surveyed the Pacific Ocean, charted parts of the Antarctic coastline, and assembled a major collection for the Smithsonian Institution. It combined naval surveying, natural history, ethnography, and hydrography and influenced later American naval operations, museum curation, and scientific institutions. The expedition linked the young United States more firmly to Pacific navigation and global science through charts, specimens, and publications.

Background and preparation

The expedition originated in a congressional appropriation championed by figures such as John Quincy Adams, Senator Levi Woodbury, and Secretary of the Navy John Forsyth aimed to advance American presence after voyages by James Cook, George Vancouver, and Matthew Flinders. Planning involved the United States Navy bureaucracy, Naval Yard facilities at Portsmouth Navy Yard, Washington Navy Yard, and ports like New York City and Boston. Wilkes recruited officers and specialists including Alexander Dallas Bache-influenced scientists, artists trained in methods used by John James Audubon and museums at institutions like the American Philosophical Society and the Harvard Museum of Comparative Zoology. Scientific aims echoed surveys by Royal Society-backed expeditions and drew on instrumentation from makers such as John Herschel and techniques from Alexander von Humboldt.

Voyage and route

Departing from Norfolk, Virginia in August 1838, the squadron—built around Vincennes and sloops like Peacock—sailed south along the Atlantic Ocean past stops at Rio de Janeiro, Cape Town, and around the southern oceans into the Pacific Ocean. Wilkes charted islands in the South Pacific including visits to Tonga, Fiji, Samoa, Hawaii, and claimed parts of Antarctica after surveying the Antarctic coast—a route resonant with earlier voyages by James Cook and Fabian Gottlieb von Bellingshausen. The expedition explored the Columbia River and surveyed the Pacific Northwest coasts around Oregon Country, visited California ports linked to Commodore John D. Sloat’s later actions, and returned via the Philippines and Cape Horn to the United States in 1842.

Scientific work and collections

The squadron included botanists, geologists, cartographers, and artists who collected specimens now associated with the Smithsonian Institution and institutions like the Boston Athenaeum, Peabody Museum of Natural History, and Academy of Natural Sciences of Philadelphia. Naturalists cataloged flora and fauna from regions visited, adding to taxonomic work by contemporaries such as Charles Darwin, Jean-Baptiste Lamarck, and Carl Linnaeus’s tradition. Collections included botanical specimens linked to Asa Gray, zoological material studied by Spencer Fullerton Baird and George Ord, and ethnographic artifacts later curated in galleries influenced by collectors like James Smithson. Hydrographic charts aided Matthew Fontaine Maury’s oceanography and informed navigators such as Captain James Cook’s successors. Artists produced plates comparable to John Gould and Edward Lear; lithographers in Philadelphia and London later reproduced expedition illustrations.

Encounters and conflicts

Wilkes’ officers engaged in diplomatic and hostile interactions with indigenous societies in locales including Fiji, Tonga, Hawaii, the Chiloé Archipelago, and Pacific Northwest tribes such as the Chinook people and Haida. Incidents mirrored tensions from earlier contact histories like the First Opium War era and encounters familiar to sailors of Edward Belcher and Francis Drake’s legacies. The expedition took part in formal claims and confrontations, influencing later territorial assertions involving figures such as James K. Polk and doctrines like Manifest Destiny debates in the United States Senate. Encounters with colonial authorities in New South Wales and ports of the British Empire raised legal and diplomatic questions handled by envoys and consuls.

Return, publications, and legacy

On return, the expedition’s specimens and charts enriched collections at the Smithsonian Institution under curators including Spencer Fullerton Baird. Wilkes published extensive charts and reports; the multi-volume "United States Exploring Expedition" series involved editors, lithographers, and scientists connected to the Library of Congress, University of Pennsylvania, and Smithsonian Institution pressings. The voyage influenced later expeditions like those of George S. Belknap and naval officers in the United States Exploring Expedition’s professional descendants, shaping United States Navy hydrography, chart makers in Baltimore, and museum practices exemplified by the National Museum of Natural History. Geographic names and Antarctic claims invoked by Wilkes figure in histories involving the Antarctic Treaty System and later explorers such as Roald Amundsen and Robert Falcon Scott.

Controversies and court-martial

Wilkes faced controversy over his command style, discipline, and treatment of officers and crew, culminating in a court-martial in 1842–1844 presided over by naval authorities and legal figures connected to United States Department of the Navy leadership. Charges reflected disputes similar to those involving Matthew C. Perry and other assertive commanders; testimony referenced chain-of-command issues that involved officers who later linked to institutions like the United States Naval Academy and led to debates in Congressional committees and press outlets such as newspapers in Boston, New York City, and Philadelphia. The court-martial produced mixed findings that influenced Wilkes’ later career and professional reputations among contemporaries including Daniel Webster and Henry Clay-era political networks.

Category:Exploration expeditions Category:United States Navy