Post 1 was named for First Lieutenant Elmer John "Cy" Noble, U.S. Army, killed in action 26 September 1918 as a result of artillery fire while serving with Company D, 364th Infantry Regiment of the 91st Infantry Division, in Meuse-Argonne, France.  He  is buried at Meuse-Argonne American Cemetery and Memorial Romagne-sous-Montfaucon Departement de la Meuse Lorraine, France.  He was awarded the Distinguished Service Cross posthumously.  Born in Snohomish County and spent his early years there, then the family moved to Centralia in Lewis County. 

He served as a Sergeant in the Washington National Guard.  He attended the University of Washington and was an award winning "Husky" halfback, and was graduated in 1917.  He was stationed at Camp Lewis, Washington, Fort Sill, Oklahoma, and Camp Merritt, New Jersey, before being sent to France. 

In 1928, the "Citizen Military Training Camp" at Camp Lewis, one of several nationally, was moved to Camp Murray, south of Tacoma, Washington and the camp was named Camp Noble in honor of First Lieutenent Elmer J. Noble.

Post 1 was chartered in 1919. By May 1921, Rainier Post 21, had consolidated with Noble Post 1.  The name was changed to Rainier Noble Post 1.  Many posts have consolidated with Post 1 since.  On 18 September 1928, "Seattle Post No. 1, Department of Washington American Legion" registered with the Washington Secretary of State as a Fraternal Society.  We are known as "Seattle Post 1".