Robert Henry Tyndall was a United States artillery officer in World War I, a major general, and mayor of Indianapolis during World War II.
Tyndall in 1919
The Indiana National Guard (INNG) is a component of the United States Armed Forces, the United States National Guard and the Military Department of Indiana (MDI). It consists of the Indiana Army National Guard, the Indiana Air National Guard, and the Adjutant General's Office.
Indiana National Guard