The President of the United States of America, authorized by Act of Congress, July 9, 1918, takes pleasure in presenting a Bronze Oak Leaf Cluster in lieu of a Second Award of the Distinguished Service Cross to Second Lieutenant (Field Artillery) Glen A. Preston, United States Army Air Service, for extraordinary heroism in action while serving with 99th Aero Squadron (Attached), U.S. Army Air Service, A.E.F., near Andevanne, France, 29 October 1918. Becoming separated from his protecting planes while on a photographic mission, Lieutenant Preston continued on alone, and, although he was attacked by seven enemy planes, type Fokker, he drove them off and secured numerous photographs.

The President of the United States of America, authorized by Act of Congress, July 9, 1918, takes pleasure in presenting a Second Bronze Oak Leaf Cluster in lieu of a Third Award of the Distinguished Service Cross to Second Lieutenant (Field Artillery) Glen A. Preston, United States Army Air Service, for extraordinary heroism in action while serving with 99th Aero Squadron (Attached), U.S. Army Air Service, A.E.F., near Remonville, France, 30 October 1918. Lieutenant Preston successfully accomplished his mission in spite of encounters with four separate enemy formations, one of 38 machines, another of six, type Pfalz, another of seven, type Fokker, and a formation of biplane planes. He shot down one of the enemy and returned with valuable information.