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 Silver Star to First Lieutenant (Air Service) Lawrence Kingsley Callahan, United States Army Air Forces, for gallantry in action while serving with the 148th Aero Squadron, American Expeditionary Forces, in action near Neuve-Eglise, France, 24 July 1918, while on a patrol which shot down an enemy plane.