Edward was a Private in the 130th Infantry Regiment, 33rd Division. The 33rd Infantry Division was a National Guard division for the State of Illinois. The 33rd trained at Camp Logan in Houston, TX from September of 1917 until May of 1918 at which time the unit was shipped overseas to France. Upon arrival in France, the unit was first sent to the Huppy area near Abbeville until June 9th at which time they were sent to the Eu training area. On June 20th and 21st the Division was moved into the Amiens Sector where they occupied portions of the British trenches and participated in many operations. In October the 33rd was involved in heavy fighting on the Meuse River in the Argonne Forest and gained a large amount of ground that was previously taken by German Shock Troops. Under overwhelming heavy artillery, machine gun, air and gas attacks they held their ground until relieved by the 66th Division on October 15th. Sadly, a second Cronin brother had been killed in action in the same battle area as before. Edward was killed in action on October 13th, 1917 a mere 17 days after his brother.
Lincoln lost two true American Heroes that Autumn of 1918 and to honor the memory of Peter and Edward Cronin the "Cronin Brothers Veterans of Foreign Wars Post 1756" was chartered on November 6th, 1929 and still proudly carries on the tradition of service and sacrifice to the community and the nation.