Upon returning to the United States, Art Erdmann moved to 825 South St. in Oconomowoc Wisconsin with the rest of his family. His father, also a veteran, lived in Oconomowoc until his death in 1936. Frank Erdmann is buried in La Belle Cemetery.
From the year of his birth to post-WWI, the spelling of the veterans' last name has fluctuated from the more Americanized single ‘n’ of “Erdman” to the Germanic double ‘n’ of “Erdmann.” Most likely, Art and his German-born parents did this to avoid the well-documented discrimination against people with German ties. During the Great War, of course, people in the United States identified Germans as the ‘enemy.’ Because German immigrants often continued speaking their native language, they often formed German churches and--particularly in Wisconsin--German-language newspapers and cultural organizations. This made them easy targets for harassment and discrimination. As the United States became more involved with the war in Europe, tensions grew between native (i.e. Anglo) Americans and the naturalized German-Americans.
Using a more Americanized form of their name, may have helped the Erdmanns appear more American and more patriotic. Contributing two men to the war effort was another way of deflecting antagonism.