Online publication - Ancestry.com. 1900 United States Federal Census [database on-line]. Provo, UT, USA: The Generations Network, Inc., 2004.Original data - United States of America, Bureau of the Census. Twelfth Census of the United States, 1900. Washington, D.C.: National Archives and Records Administration, 1900.T623, 1854 rolls. Cook, Illinois, ED 1122, roll T623 290, page 9A.