Question: Eldon P. Wyman was an ensign serving aboard a battleship built in what year?

Context articles: USS Darby (DE-218)
Eldon P. Wyman
USS Lloyd (DE-209)
Russian battleship Potemkin
Japanese battleship Satsuma
USS Enright (DE-216)
USS Oklahoma (BB-37)
USS O'Neill
USS Ira Jeffery (DE-63)
Japanese battleship Aki

USS "Darby" (DE-218), a "Buckley"-class destroyer escort of the United States Navy, was named in honor of Ensign Marshall E. Darby (1918–1941), who fell overboard, while serving aboard the battleship USS "Oklahoma" , during the Japanese attack on Pearl Harbor on 7 December 1941.
Eldon P. Wyman (11 January 1917 - 7 December 1941) was an ensign serving aboard the USS Oklahoma (BB-37) when the Japanese attacked Pearl Harbor on 7 December 1941.
 Wyman was among the sailors trapped inside the Oklahoma when it sank at its berth.
USS "Lloyd" (DE-209/APD-63), a "Buckley"-class destroyer escort of the United States Navy, was named in honor of Ensign William R. Lloyd (1916–1942), who was killed in action while serving aboard the USS "Oahu" on 6 May 1942 during the Battle of Corregidor.
The Russian battleship "Potemkin" (Russian: Князь Потёмкин Таврический, "Kniaz Potyomkin Tavricheskiy" , "Prince Potemkin of Taurida") was a pre-dreadnought battleship built for the Imperial Russian Navy's Black Sea Fleet.
 It became famous when the crew rebelled against the officers in June 1905 (during that year's revolution), which is now viewed as a first step towards the Russian Revolution of 1917.
 The mutiny later formed the basis of Sergei Eisenstein's 1925 silent film "The Battleship Potemkin".
Satsuma (薩摩 ) was a semi-dreadnought battleship built for the Imperial Japanese Navy (IJN) in the first decade of the 20th century.
 Lead ship of her class, she was the first battleship built in Japan.
 She was named for Satsuma Province, now a part of Kagoshima prefecture.
 The ship saw no combat during World War I, although she led a squadron that occupied several German colonies in the Pacific Ocean in 1914.
 "Satsuma" was disarmed and sunk as a target in 1922–24 in accordance with the terms of the Washington Naval Treaty of 1922.
USS "Enright" (DE-216/APD-66), a "Buckley"-class destroyer escort of the United States Navy, was named in honor of Ensign Robert Paul Francis Enright (1916-1942), who was killed in action while serving aboard the destroyer "Hammann" (DD-412) during the Battle of Midway on 6 June 1942.
USS "Oklahoma" (BB-37) was a "Nevada"-class battleship built by the New York Shipbuilding Corporation for the United States Navy in 1910, notable for being the first American class of oil-burning dreadnoughts.
USS "O'Neill" (DE-188) was a "Cannon"-class destroyer escort in the United States Navy.
 She was named for Ensign William Thomas O'Neill, Jr., killed on 7 December 1941, during the attack on Pearl Harbor, while serving aboard USS "Arizona" .
USS "Ira Jeffery" (DE-63/APD-44), a "Buckley"-class destroyer escort of the United States Navy, was named in honor of Ensign Ira Well Jeffery (1918-1941) who was killed in action during the Japanese attack on the Hawaiian Islands while serving aboard the battleship "California" .
Aki (安芸 ) was a "Satsuma"-class semi-dreadnought battleship built for the Imperial Japanese Navy (IJN) during the first decade of the 20th century.
 She was the second battleship built domestically in Japan and the first to use steam turbines for propulsion.
 The ship was named for Aki Province, now a part of Hiroshima Prefecture.
 The ship saw no combat during World War I.
 "Aki" was disarmed in 1922 and sunk as a target in 1924 in accordance with the terms of the Washington Naval Treaty of 1922.