[5] Enrollment at the Sweeney School grew significantly to train automobile mechanics and radio technicians during World War I.

As enrollment increased, the Sweeney School moved south from its 15th Street location to construct a building that would become a Kansas City landmark.

Sweeney built the new high-rise school building for his classes directly across from Union Station on Pershing Road in Kansas City, Missouri.

"[7] Financial reverses caused the closing of the school, in these quarters, and on November 8, 1929, the building was acquired by the Businessmen's Assurance company, which renovated and remodeled the structure and used it until the BMA Tower opened in 1963.

Radio station WHB was established at the Sweeney Automobile School by Sam Adair and John T. Schilling.

The twin towers of WHB on Pershing Road became a well-known Kansas City landmark, along with Sweeney's gaudy "LEARN A TRADE" sign atop his building.