Actually, there was a guest room. Beaver moved into it in one episode, but got scared to be alone. And we did see Ward and June's bedroom briefly a couple of times, like when the boys knocked on the door and woke them in the middle of the night. And once we saw their bathroom.
Now I know where to go with all of my "Leave It To Beaver" questions. And I do have them -- work is interfering with me just now, but I will pester you later. But two quick ones -- was there ever an explanation of why Larry Mondello left? And wasn't Miss Landers Beaver's teacher for at least two or three years? How did they explain that?