Born March 12, 1872 in Jessup, Maryland. Graduated from the United States Naval Academy in 1895. Accepted a commission in the United States Marine Corps on July 1, 1897 and was sent to the North Atlantic Squadron in April 1898 for his first assignment. During the Battle of Guantanamo Cuba Bannon distinguished himself in combat and received a Brevet promotion to First Lieutenant effective June 13, 1898. After Guantanamo, Bannon was assigned to the Philippines for a short time and was then ordered to China and participated in the Boxer Rebellion. Now at the rank of Captain he led a company of Marines that marched into Tientsin to join other allied forces already there and received a commendation for gallantry from the Department of the Navy for his "gallant, meritorious, and courageous conduct on July 13, 1900." After the Boxer rebellion Bannon was put in command of the Marine detachment aboard the USS Wabash and was then assigned to the prison ship Southery. In 1906 Bannon saw service in both Panama, where he led a battalion of Marines and in Cuba where he participated in the pacification of Cuba. He retired as a Colonel in 1928 and died at the Naval Hospital in San Diego, California June 25, 1940. Awards: Marine Corps Brevet Medal, Sampson Medal, Spanish Campaign Medal, Philippine Campaign Medal, China Relief Expedition Medal, Cuban Pacification Medal, Mexican Campaign Medal, Second Nicaraguan Campaign Medal, Marine Corps Expeditionary Medal, World War I Victory Medal, Military Order of the Carabao and the Military Order of the Dragon.
=== CITATION: The Secretary of the Navy takes pleasure in transmitting to Second Lieutenant Philip Michael Bannon, United States Marine Corps, the Brevet Medal which is awarded in accordance with Marine Corps Order No. 26 (1921), for distinguished service in battle while serving with Company C, First Marine (Huntington's) Battalion, at Guantanamo, Cuba, on 13 June 1898. On 10 August 1898 Second Lieutenant Bannon is appointed First Lieutenant, by brevet, to take rank from 13 June 1898.