Hi all, Awhile back I posted a query about the 1940 Tribune article on the 1878 Chicago street map my gr grandfather lithographed in 1878. I have yet to look into Line Reference Library noted in the article, my search has moved to quickly for me to keep up. I "might" have found this map? With a very enjoyable contact with the Newberry Library I have several sources of maps printed in Chicago by Anders Askevold. Newberry sent one digital copy of another map and the Abraham Lincoln Presidential Library just sent digital copies of two others, 1874 Illinois and 1875 Chicago. The 1874 Illinois map was published by The Chicago Map Establishment, Askevold and Roy proprietors. I know of this partnership from the Chicago directory page of 1874. Peter Roy is noted for maps of the 1880-1890's. The 1875 Chicago map has the same business name with A. Askevold proprietor and the same business address used in the directory pages for my gr grandfather till 1878. I still have four maps to find from two sources, the Chicago Historical society and the Wisconsin Historical Society in Madison. I am sure these maps will have "The Chicago Map Establishment" noted. This business is a clue for me to understand why Anders moved the family back to Norway about 1880. How would I find information on this Chicago business? Dates might only run from 1874-1878, 1872-1880 might be more in the time frame. Would records of this business of Ashland Blk. at Clark and Randolph be kept somewhere? Al Askevold Forsyth, MO.