McKenna Process Company
Plant formerly located in Joliet, Illinois - ca. 1920.
McKenna Steel Working Company Stock Certificate
The listed owners are: Howard Morris, Harry L. Burrage, John W.P. Lombard, Edwin H. Abbott, Jr. and Edwin H. Abbott.
This company was set up in the state of Wisconsin.  It was the owner (through the listed persons) of both the American McKenna Process Company and the English McKenna Process Company.  This certificate wasn't the first one issued.
McKenna certificates are known
in at least two other placesHere ... and Here ...
McKenna Process Compant stock certificate