American Legion Thoman-Boothe Post 338 was organized on November 24, 1920, approved and adopted by charter by the Department of Missouri, The American Legion on May 17, 1921 and is named after Pvt Henry Thoman, 29th Infantry, US Army and Pvt Lawrence Boothe, 5th Marine Corps who were killed in action during World War 1 in 1918. They were both residents of Overland, Missouri. Pictures of both Henry Thoman and Lawrence Boothe are located in the main lobby of the hall.

To ensure the memory of Henry Thoman, Lawrence Boothe and another resident of Overland, Missouri, William Siegler, Pvt., Army Air Corps, the post members voted unanimously to purchase a granite memorial to honor these three men. In 1924 the Ritenour High School Board and council members deeply influenced by this memorial gave the members of Post 338 permission to erect the monument on the campus of the school. In 1953 the construction of the present Legion hall was completed and the monument was moved from the campus of Ritenour High School to the Post home and placed near the flag pole where it is still located today.

Since 1924 Post 338 has realized many enhancements through the efforts of its members. Some of these include construction of the current Post building, acquisition of additional surrounding land (Legion Park) which is populated with a ball field, playground, and picnic area. The original refreshment stand was remodeled and is now called the Fish House, which is used for our fish fry. The Post home was renovated with the addition of 4,000 square feet which included a recreation hall with a lounge, pool and card tables, and a kitchen area for all members to enjoy.