In a voice over near the beginning of the episode, Lloyd Bridges (Mike Nelson) clearly states he had received a telephone call from his friend, Cy Baker, superintendent of streets and sanitation for the city. During the rest of the program, this character is identified as Cy Becker.
Mr. Nelson tells Mr. Tucker to take care of his wife and child. While Mr. Tucker could conceivably have mentioned that his wife was with child before exiting the storm drain, it does not seem likely.