The American Legion granted a temporary charter to Machias Vally Post #9 on the Seventh of July, 1919.
The charter members were:
Howard A. Flynn Nathan H. Mallar
Oscar F. Larson Clayton H Gay
Daniel Wayne Bendix Gerald A. Gay
Leo J. Sexton Donald T. McDonald
Harold Holmes Charles L. Crowley
Adelbert W. Hasty Clark Perry
Joseph M. McLaughlin I. W. Heaton
Elmer C. Sprague
A charter was given to Ephriam H. Johnson, Post No. 9, Department of Maine, on August 1, 1920.
It was signed by Franklin D'oliver, National Commander, Lemuel Bolles, National Adjutant; Albert Greenlaw, Department Commander, and James L. Boyle, Department Adjutant.
On Janurary 2, 1942, a charter was grant to Post #9 Legion Auxiliary.