In October, 1827, Page was appointed midshipman at the
Gosport Navy Yard in Norfolk, Virginia. He was stationed on a
receiving ship while being trained in navigation and the use of navigational instruments. In the spring of 1828, Page was posted to the
USS Erie, a sloop-of-war that patrolled the West Indies and the coast of Mexico; he served on the
Erie until 1832. He passed midshipman in 1833 and received a promotion to lieutenant in 1837. After serving on the
Erie, Page carried out a hydrographic survey of the New York coastline and from 1842 to 1844, he cruised with the battleship
Columbus to the Mediterranean and Brazil. Afterwards he worked under
Matthew Fontaine Maury at the
Naval Observatory in Washington. In 1849, Page commanded the on a cruise to the Far East. There he determined that a surveying expedition to map the Chinese coastal waters would benefit American commerce. After returning to the United States, the Navy agreed with Page and organized a
surveying expedition under Commander
Cadwalader Ringgold. Page declined the offer to serve as second-in-command.
Rio de la Plata expeditions After declining to participate in the Ringgold expedition, Page was assigned leadership of an expedition in South America to "explore and survey the river La Plata and its tributaries". The La Plata had recently been opened to commerce after the Argentine dictator
Juan Manuel de Rosas had been forced from office. In addition to charting the waterways of the
Río de la Plata basin, Page was instructed to explore the surrounding countryside and collect natural history specimens for the naturalist
Spencer Fullerton Baird at the Smithsonian. Page commanded the
USS Water Witch, a wooden-hulled, sidewheel gunboat which sailed from Norfolk in February 1853, and reached Buenos Aires, at the mouth of the La Plata, in late May 1853. For the next few years the expedition explored the region, sailing 3,600 miles of river and traveling 4,400 miles on shore. In all, the expedition accomplished the first detailed hydrological studies of the main rivers that drain the Rio de la Plata basin. Crew members were also sent out by Page to collect animals, plants, and geological specimens. Their efforts resulted in one of the earliest and most significant natural history collections to be gathered by an American expedition. Page had negotiated permission to explore the waterways of Argentina and Brazil, but access to Paraguay was problematical. A commercial dispute between the Paraguayan president,
Carlos Antonio López and an American trading company eventually led to the exclusion of the expedition from Paraguay. In early 1855, Paraguayan troops fired on the
Water Witch, hitting the ship several times and killing one crewmember. When Page asked the navy for help to avenge the attack, his requests were turned down. Denied access to Paraguay, Page finished surveying what he could and returned home in May 1856. In Washington, he continued to press for action against Paraguay and in 1857, President
James Buchanan responded by
sending a force of nineteen ships to hold Paraguay accountable for the attack on the
Water Witch and other perceived offenses. Page, promoted to captain in 1855, was appointed fleet captain under Commodore
William Shubrick. An understanding with Paraguay was quickly reached and Page was relieved of his fleet duties so he could continue his survey work in the now accessible rivers of Paraguay. By October 1860, Page felt they had accomplished all their goals. The expedition was disbanded and Page returned to Washington. Page wrote an account of the first La Plata expedition,
La Plata, the Argentine Confederation and Paraguay, which was published in 1859. == American Civil War ==