William G. Walsh

United States Marine Corps Medal of Honor recipient (1922–1945)

Gunnery Sergeant William Gary Walsh (April 7, 1922 – February 27, 1945) was a United States Marine who heroically sacrificed his life to save the lives of his fellow Marines during the Battle of Iwo Jima during World War II. For his actions on February 27, 1945, he posthumously received the Medal of Honor.

William Walsh was born on April 7, 1922, in Roxbury, Massachusetts. He attended public schools in Boston before enlisting in the United States Marine Corps in April 1942. He went to boot camp at the Marine Corps Recruit Depot Parris Island, South Carolina, and advanced training at Camp Lejeune, North Carolina. From Camp Lejeune, he went to Samoa and was assigned to a unit of Marine scouts. His next assignment was with the 2nd Marine Raider battalion, the famed Carlson's Raiders. During the United States' war with Japan in the Pacific, he saw action at Guadalcanal, Bougainville, Tarawa, and in the Russell Islands. Following two years of service in the Pacific theatre, he returned to the United States. He returned overseas later with the 5th Marine Division in time for the Iwo Jima invasion. It was at Iwo Jima, while leading his men against a fortified hill on February 27, 1945, he threw himself on a hand grenade, sacrificing his life to save the lives of fellow Marines. For this heroic act, he was posthumously awarded the Medal of Honor. Initially buried in the 5th Marine Division Cemetery on Iwo Jima, GySgt Walsh's remains were later reinterred in Arlington National Cemetery on April 20, 1948.