After the Japanese attack on Pearl Harbor, sixteen sons of Holy Cross were called to serve their country.
Each Sunday service included prayers for the country and servicemen. A service flag was hung in the church with a blue star for each absent serviceman. A gold star replaced the blue star representing Roy Hoffmann, who gave his life for his country. The outdoor bulletin board was placed in his memory in 1945.
The conflict with Germany caused many churches to discontinue the services in German. By January 1942, services alternated between German and English.
1942 also started the minutes of the voter's meeting being written in English and the publication of the weekly bulletin. Before then, the pastor kept an announcement book that was read at every service.
The eightieth anniversary of the stone church was observed on June 4, 1944. Dr. Paul Bretscher and Dr. Alex W. Guebert of Concordia Seminary spoke at the morning and evening services respectively.
In October 1944, the voters assembly decided that a special service of thanksgiving for peace would be held at such time as peace had been declared. This was prompted by expectations of Germany's imminent surrender. Services of thanksgiving were held on V-E and V-J days.
The returning servicemen gave the church a missal stand. The Ladies Aid served dinners for two different returning groups of servicemen.
In June 1945, Pastor Frick's 25-year pastorate came to an end. He accepted a call to St. Paul's Evangelical Lutheran Church, Grant Park, Illinois. He, his wife and their eight children had become deeply attached to the community. It was with great emotion that they bid the congregation farewell.
During Mrs. Frick's membership, she was the church organist and choir director.
Rev. N. Hildebrandt of St. Paul's Church, Columbia served as the vacancy pastor. Mrs. Emma Wolf served as church organist. She continued in this capacity until 1949.