Organized in 1947 with thirty charter members, this group recognizes the men and women who have served in the armed forces. In 1991, Post 604 dedicated a monument which lists the names of Arenzville residents who have served in the nation's major military conflicts. Currently, the post has over 80 members, including veterans who served in WW II, Vietnam and the Gulf. The American Legion Post 604 is a co-sponsor of the Arenzville Burgoo and maintains the town's Legion Hall.

Myron Beard, at the annual Memorial Day ceremony.