Ron Long of Rockford, IL, owner of this 3hp Rockford engine in 2001, is aware
of another in Woodstock, Illinois and one other somewhere in the South.

Steve Barr is aware of two other 3hp Rockford engines.
One is near the Quad Cities in Illinois and the other in eastern Iowa.

Michael Evans of Greenville, Illinois also owns a 3hp Rockford as of March 2003.

This 3hp Rockford was owned by Warren Paulson of Rockford, IL at his death in 2012.