1921:James P. C. Southall 1922–1923:Leonard T. Troland 1924–1925:HerbertE. Ives 1926–1927:William E. Forsythe 1928–1929:Irwin G. Priest 1930–1931:Loyd A. Jones
D. dissertation, Texas Tech University 1972. Crosman, Herbert A. "The Early Career of José Ives Limantour, 1854-1886." Ph.D. dissertation. Harvard University
Service" in: Bell Laboratories RECORD, 1964, Vol. 42, pp. 114–120. Ives, HerbertE. Two-Way Television and a Pictorial Account of its Background (页面存档备份,存于互联网档案馆)