Game 1: Donald E. Gray - ""Teaches Course for Expectant Parents"" (from Flint, Michigan) Game 2: Rae V. Biester - ""Head of U.S. Mint (Philadelphia, PA)"" (from Drexel Hill, Philadelphia) Game 3: Kathryn Grayson (as Mystery Guest) Game 4: Peter R. Kaplan - ""Private Detective"" (for the Metropolitan Detective Agency; from Radisson, New Jersey; he is also a student at Princeton)
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Ready to Watch Whats My Line, Season 9, Episode 47?