Possible Clues:

• Samuel's teacher has turned out to be a prophet
• Prophet in purdah silently returning
• Passenger elevator innovator Otis
• A Hebrew prophet of the 9th century BC
• Elevator man -- Otis
• II Kings prophet
• Prophet of I and II Kings
• Cook who played Wilmer in "The Maltese Falcon"
• Actor Cook Jr. of The Maltese Falcon
• Wonder-working biblical prophet