Carl Greenleaf was president of Conn from 1915 to 1949. The new company was incorporated with public stock offerings under the name C.G. Conn Ltd. and the Conn trademark was updated to the official name of the new company. Greenleaf was an astute businessman, very sensitive to the market trends of the industry. While president, Greenleaf was noting the gradual extinction of the small town brass band, and of the big touring bands such as the Sousa band. To shore up the future market for band instruments, he undertook to promote band programs in schools and colleges. He proceeded to develop a close relationship and communications between the industry and music educators. His collaboration with educators such as Joseph E. Maddy and T.P. Giddings helped introduce band music into public schools. Greenleaf organized the first national band contest in 1923 and helped make possible the founding of the National Music Camp at Interlochen, Michigan. In 1928 he founded a Conn National School of Music which trained hundreds of school band directors, and this in turn helped spur the development of music programs in schools and communities across the United States.