Cook County, Illinois Genealogy

The Chicago History Museum has a tremendous collection of on-line resources useful to family history researchers. Of particular interest are the Biographical Dictionary of Chicago, (part of the Encyclopedia of Chicago) and a photo index of portraits taken by early Chicago photographers. The Society's collection includes tens of thousands of images from early photographers E.L. Brand and C.D. Mosher, among others, all indexed by the name of the person in the photograph, as well as by photographer and studio. Their collection can be searched at the Chicago Historical Society Research Center.