Game 1: Sir Hubert Wilkins (signed in as ""Mr. X"" and the panel was not blindfolded) - ""Arctic Explorer"" (he was the first to fly over the Arctic Ocean; currently from Montrose, Pennsylvania; see notes below) Game 2: Clyde W. Ferrar, Jr. - ""Egg Inspector"" (from Virginia) Game 3: Peter Lind Hayes & Mary Healy (as Mystery Guest Duo) (Peter Lind Hayes wrote on the blackboard ""Who was that lady?"" before he and his wife Mary Healy signed in. This was a reference to their recently opened Broadway play, ""Who Was That Lady I Saw You With?"" which ran at the Martin Beck Theatre for a total of 208 performances) (thetvdb.com)