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.

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.