Although he operated independently from his Ostheimer relatives, both he and his uncle George Ostheimer (the first Secretary of the American Chamber of Commerce in Paris) were among ninety-five American-nominated members of the international awards jury at the Paris Exposition of 1900, Berg being a juror in the machine tool class. For their services in this connection both men were made Knights of the French Legion of Honour. A United States Government Report referred to Berg’s “hearty cooperation” with the U.S. Department of Machinery and Electricity in achieving the Department’s aims at the Exposition.