by Chicago Association of Commerce and Industry

1909

by Chicago (Ill.). Department of Law

1925

by Chicago (Ill.). Vice Commission

1911

by Chicago. Vice Commission

1911

by Chicago Recreation Commission

1937

by Chicago (Ill.). City Council

1925

by Chicago (Ill.). City Council

1903

by Chicago (Ill.). Dept. of Health. School of Sanitary Instruction

1929

by Chicago Bureau of Public Efficiency (Chicago, Ill.)

1917

by Chicago Bureau of Public Efficiency

1920

by Chicago Bureau of Public Efficiency (Chicago, Ill.)

1922

by Chicago (Ill.). Board of Health

1919