- Period:
- First World War (1914-1918)
- Rank:
- Major
- Unit:
- 3rd Division, American Expeditionary Forces (AEF), U.S. Army
- Awarded on:
- 1919
For extraordinary heroism in action while serving with 30th Infantry Regiment, 3d Division, A.E.F., near the Marne River, France, 15 July 1918. Holding a front of more than 4 1/2 kilometers along the Marne River, Major Walker commanded a front-line battalion, which received the principal shock of the German attack on the French Army Corps front, but inflicted great losses on the enemy as the latter crossed the river. Those who succeeded in crossing were thrown into such confusion that they were unable to follow the barrage; and, through the effective leadership of this officer, no Germans remained in his sector south of the river at the end of the day's action. When one platoon had been cut off by an entire enemy battalion near the river, he sent other units to its relief and captured the entire German battalion, numbering 200 soldiers and 5 officers, including the battalion commander."
War Department, General Orders 89