I ran across an interesting article of historical value that stated my great great great great grandfather Henry Emery attended the Lincoln/Douglas debate in Galesburg, Illinois. His daughter Catherine also attended.
The following day, October 8, 1858, Abraham Lincoln spoke in town; Henry and Catherine sat directly across the table from Mr Lincoln, the future President of the United States.
Unfortunately, I haven't been able to find confirmation this actually happened, but the Emery's were living in Henry county, Illinois at the time, which would have been about 26 miles northeast of Galesburg, Illinois where the debate was held.
A newspaper account of the debate can be found by clicking here.