The 237th was formed in April of 1943 and spent some time stateside in Louisiana before shipping out to North Africa. From there the unit went to Britain, where they participated in preparations for D-Day

On D-Day itself, your grandfather's company was a part of the first wave to hit Utah Beach at 0635 hours. They were responsible for clearing the beach of obstacles and constructing exits from the beach. By nightfall, the battalion was in the vicinity of St. Mere Eglise.

The 237th fought in St. Lo during the campaign to break out of the Normandy hedgerows. In the months afterwards, the unit helped to surround Paris, and then liberated Liege, Belgium.

He also participated in the capture of Aachen, the first German city to fall to American forces.

The 237th also participated in the Battle of the Bulge.

In March of 1945, the 237th built a 1300(!) foot bridge across the Rhine at Bonn. This bridge was named the "Beer Bridge", because the battalion earned a beer party for completing it in less than 10 hours. https://commons.wikimedia.org/wiki/File:1945_ww2_rhine_river_ponton_bridge_Bonn_to_Beuel_beer-bridge.jpg

The 237th took Marburg on their way to closing the Ruhr Pocket near the end of hostilities.

SOURCES: http://www.history.army.mil/html/reference/normandy/TS/COE/COE15.htm http://www.military.com/Content/MoreContent1/?file=dday_0015p1 http://www.friendsofallencounty.org/pdf/petersmemoirs.pdf

Hope this helps!