Here's my Dad's 1971 presentation on the Great Chicago Fire of 1871.

as Presented to the Great Lakes Historical Society - CLEVELAND in 1971

In the Fall of 1971 I hitchhiked from Boston to Cleveland to assist my Dad in presenting his slideshow presentation on the Great Chicago Fire.  Above is the digitized version.

Mrs.O'Leary's cow acts up

What was going on...is lost in the smokey history of the fire.

aftermath

So intense was the heat that steel, iron, glass and limestone melted and ran like butter.