Game 1: William Hartnett - ""Rainmaker"" (he uses silver iodide to increase natural rainfall; he donated his game winnings to Father Flanagan's Boys Town; from St. Louis, MO) Game 2: Bernard Spooner - ""Makes Bulletproof Vests"" (from Manhattan, NY) Game 3: The DeMarco Sisters (as Mystery Guests) They signed in as ""The 5 DeMarco Sisters"" See notes below Game 4: Mrs. Daisy Whitten - ""Makes Heating Pads"" (from Asheboro, North Carolina)
| Name | Type | Role | |
|---|---|---|---|
| The DeMarco Sisters | Guest Star |