This may be the first time a FReeper cited Madaline Murray O’Hair as an authority on anything! Yes, the rumors were rife throughout the Army during (and after) the war because Eisenhower and Summersby were frequent companions and even confidants. But suspicion and innuendo don’t constitute credible evidence of an affair. Here’s an AP article on the subject from about 10 years ago:
http://chronicle.augusta.com/stories/2003/10/10/met_395925.shtml
Then there was George Armstrong Custer and his little Indian mistress.