Mandolin
Mandolin awareness in the United States blossomed in the 1880s, as the instrument became part of a fad that continued into the mid-1920s. According to Clarence L. Partee, the first mandolin made in the United States was made in 1883 or 1884 by Joseph Bohmann, who was an established maker of violins in Chicago. Partee characterized the early instrument as being larger than the European instruments he was used to, with a "peculiar shape" and "crude construction," and said that the quality improved, until American instruments were "superior" to imported instruments. At the time, Partee was using an imported French-made mandolin.
Where was Joseph Bohmann from? 
Chicago
According to Clarence L. Partee, the first mandolin made in the United States was made in 1883 or 1884 by Joseph Bohmann, who was an established maker of violins in Chicago.
Joseph Bohmann