To further increase efficiency , he established the subsidiary Illinois Organ Supply Company in 1920 , which mass - produced component parts for Hinners and other firms .
John Hinners ' son Arthur took over as president in 1915 .
To further increase efficiency , John Hinners established the subsidiary Illinois Organ Supply Company in 1920 , which mass - produced component parts for John Hinners and other firms .
John Hinners ' son Arthur took over as president in 1915 .