Alvord, Clarence W., ed. Centennial History Of Illinois. Chicago: A.C. McClurg, 1922. The Centennial History isa 6-volume history of Illinois by the Illinois Centennial Commission that was published in 1920 in honor of Illinois' centennial.
Alvord, Clarence W., ed. Centennial History Of Illinois: Volume 4 The industrial state 1870-1893, by E.L. Bogart and C.M. Thompson. Chicago: A.C. McClurg, 1920.
Alvord, Clarence W., ed. Centennial History Of Illinois: Volume 5 The modern commonwealth, 1893-1918, by E.L. Bogart and J.M. Mathews. Chicago: A.C. McClurg, 1920.