John S. McCain Sr.
Birth name	John Sidney McCain
Nickname	"Slew"
Born	(1884-08-09)August 9, 1884 Carroll County, Mississippi, U.S.
Died	September 6, 1945(1945-09-06) (aged 61) Coronado, California, U.S.
Place of burial	Arlington National Cemetery
Allegiance	United States
Service/branch	United States Navy
Years of service	1906–1945
Rank	Admiral
Commands held	USS Ranger Air Forces for Western Sea Frontier and the South Pacific Force Bureau of Aeronautics Second Fast Carrier Force Task Group 38.1 Task Force 38
Battles/wars	World War I World War II Pacific War Guadalcanal Campaign Mariana Campaign Philippines Campaign Battle of Okinawa
Awards	Navy Cross Navy Distinguished Service Medal (3)
Relations	ADM (USN) John S. McCain, Jr. (son) CAPT (USN)/Sen. John S. McCain III (grandson) BG (USA) William Alexander McCain (brother) PVT (CSA) William Alexander McCain (grandfather)

John Sidney "Slew" McCain Sr. (August 9, 1884 – September 6, 1945) was a United States Navy admiral. He held several command assignments during the Pacific campaign of World War II. His son was John S. McCain, Jr. and his grandson is John McCain.

McCain, Sr. was born on August 9, 1884 in Carroll County, Mississippi. He studied at the University of Mississippi and at the United States Military Academy at West Point. McCain, Sr. was married to Catherine Davey Vaulx from 1909 until his death in 1945. They had one child. McCain died on September 6, 1945 in Coronado, California from a heart attack, aged 61.

• John Sidney McCain at arlingtoncemetery.net site Archived 2013-05-28 at the Wayback Machine

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