On April 29, 1918, John Olson was selected to serve in World War I and left for Camp Dodge, Iowa. He was assigned to the 179th Brigade, 357th Infantry Regiment, 90th Division, 2nd Company. John was killed in action on September 26th, 1918. He was laid to rest at the Lockport Cemetery located at Madison and E. 6th Streets, Lockport, IL.

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