Charles Wilkes (April 3, 1798 – February 8, 1877) was an American naval officer, ship's captain, and explorer. He led the United States Exploring Expedition (1838–1842).
During the American Civil War between 1861 and 1865, he commanded during the Trent Affair in which he stopped a Royal Mail ship and removed two Confederate diplomats, which almost led to war between the United States and the United Kingdom.

Early life and career
Wilkes was born in New York City, on April 3, 1798, the great nephew of the former Lord Mayor of London John Wilkes. His mother was Mary Seton, who died in 1802 when Charles was just three years old. As a result, Charles was raised and home tutored by his aunt, Elizabeth Ann Seton, who was fluent in French from her own upbringing in New Rochelle, New York on a French Huguenots settlement. Charles became himself fluent, which served him throughout his career, including in dealing with officials during an extended stay in Europe in 1830 and 1831. His fluency was also demonstrated during his exploration of Puget Sound in 1841 with French-speaking guide Simon Plamondon. Seton later converted to Roman Catholicism, becoming the first American-born woman canonized a saint by the Catholic Church. When Elizabeth was left widowed with five children, Charles was sent to a boarding school, and later attended Columbia College, which is the present-day Columbia University.

Career
Wilkes entered the United States Navy as a midshipman in 1818, and became a lieutenant in 1826.

In 1833, for his survey of Narragansett Bay, he was placed in charge of the Navy's Department of Charts and Instruments, out of which developed the Naval Observatory and Hydrographic Office. Wilkes' interdisciplinary expedition (1838–1842) set a physical oceanography benchmark for the office's first superintendent Matthew Fontaine Maury.
He was elected to the American Philosophical Society in 1843.
Columbian Institute
During the 1820s, Wilkes was a member of the prestigious Columbian Institute for the Promotion of Arts and Sciences, which counted among its members presidents Andrew Jackson and John Quincy Adams and many prominent men of the day, including well-known representatives of the military, government service, medical, and other professions.
South Seas expedition
In 1838, although not yet a seasoned naval line officer, Wilkes was experienced in nautical survey work, and was working with civilian scientists. Upon this background, he was given command of the government exploring expedition "... for the purpose of exploring and surveying the Southern Ocean,... as well to determine the existence of all doubtful islands and shoals, as to discover, and accurately fix, the position of those which [lay] in or near the track of our vessels in that quarter, and [might] have escaped the observation of scientific navigators." The US Exploring Squadron was authorized by act of the Congress on May 18, 1836.
The Exploring Expedition, commonly known as the Wilkes Expedition, included naturalists, botanists, a mineralogist, taxidermists, artists, and a philologist, and it was carried by (780 tons) and (650 tons), the brig (230 tons), the store-ship , and two schooners, (110 tons) and (96 tons).
Departing from Hampton Roads on August 18, 1838, the expedition stopped at the Madeira Islands and Rio de Janeiro; visited Tierra del Fuego, Chile, Peru, the Tuamotu Archipelago, Samoa, and New South Wales; from Sydney sailed into the Antarctic Ocean in December 1839 and reported the discovery "of an Antarctic continent west of the Balleny Islands" of which it sighted the coast on January 25, 1840. After charting 1500 miles of Antarctic coastline, the expedition visited Fiji and the Hawaiian Islands. In Fiji, the expedition kidnapped the chief Ro Veidovi, charging him with the murder of a crew of American whalers. And, in July 1840, two sailors, one of whom was Wilkes' nephew, Midshipman Wilkes Henry, were killed while bartering for food on Fiji's Malolo Island. Wilkes' retribution was swift and severe. According to an old man from Malolo Island, nearly 80 Fijians were killed in the incident.
From December 1840 to March 1841, he employed hundreds of native Hawaiian porters and many of his men to haul a pendulum to the summit of Mauna Loa to measure gravity. Instead of using the existing trail, he blazed his own way, taking much longer than he anticipated. The conditions on the mountain reminded him of Antarctica. Many of his crew suffered snow blindness, altitude sickness and foot injuries from wearing out their shoes.





