Bird's-eye view of Fort Dearborn, Chicago, Illinois. 1—Main entrance of the fort; 2—location of the "sallyport", and underground passage running to the river; 3—gateway to the west; 4—blockhouse at the northwest corner of the fort; 5—blockhouse at the southeast corner of the fort; 6—officers' quarters; 7—barracks; 8—magazine.
J Seymour Currey
1912
The Story of Old Fort Dearborn p. 27 (<a rel="nofollow" class="external autonumber" href="https://archive.org/details/oldfortdearborn00currrich">[1]</a>) after a drawing of a model by Albert L. Van den Berghenin 1898 that appeared in the Chicago Daily Tribune on March 5, 1899. The model is now in the Chicago History Museum