I wonder if there is any easy way to check and see if King actually spoke in Chicago during that time?????
Turns out it IS easy. Here is the link: http://blog.washingtonpost.com/fact-checker/2007/12/hillary_and_martin_luther_king.html
She said she saw MLK in January of 1963, but the sermon she says she remembers was given in April of 1962. I doubt she was there at all.
Wellthe lecture supposidly happened in a decent size hall/auditorium. I suspect there is a way.