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 the Distinguished Service Cross to Second Lieutenant (Field Artillery) Glen Anthony 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 Cunel, France, 5 October 1918. While on a photographic mission Lieutenant Preston and his pilot were attacked by seven enemy planes (type Fokker) and driven back to our own lines. They almost immediately returned to the same locality without the protection of battle planes and continued to take photographs until attacked by five machines (Pfalz type). They opened fire on this formation and brought down two of them and drove the others away and then returned with photographs of great importance.