 Thompson died in 1910, but his efforts came to fruition as the Maverick County Irrigation Canal system, operational by April 1932.March 3, 1911, when Lt. Benjamin D. Foulois and Philip O. Parmalee made the first official military reconnaissance flight, looking for Army troops between Laredo and Eagle Pass, Texas, with a ground exercise in progress.In 1942, the Army Air Force built a single-engine advanced flying school 12 mi (19 km) north of Eagle Pass.