That Wally called June ‘Mother.”

That Larry’s father was not out of town when Larry got into trouble. Mrs. Mondello tells June. However when they played hooky his father was home.

When there were more than 5 people in the boys’ bedroom.

When Beaver said he was doing something with Whitey and Gilbert and it turned out to be Whitey and Larry.

That Mrs. Mondello visited the first house. (Sorry two times)

That Wally called June ‘Mother.”

Was it in June's Birthday?, when he might have said Mother's upstairs squaring it with him now. I told her a bunch of things to say.

That Larry’s father was not out of town when Larry got into trouble. Mrs. Mondello tells June. However when they played hooky his father was home.

When there were more than 5 people in the boys’ bedroom.

I was gonna say Yardbirds but that was 5.

When Beaver said he was doing something with Whitey and Gilbert and it turned out to be Whitey and Larry.

That was the Freckles episode.

That Mrs. Mondello visited the first house. (Sorry two times)

One time was after Larry stayed over. "Where in the stomach?"

Was the other time in the Larry "finding" money for the carnival episode?

Yes the freckles episode and those are the two times we see Mrs. M at the first house.

In the episode when Wally calls June Mother, June calls Wally downstairs to ask him a question and he says “Yes Mother.” 1st season

The time there were more than 5 people in the boys’ room was a very early episode.

The one when Larry’s father is home when he does something bad was an episode when Beaver wins something. Mrs. M calls the Cleavers and says to June “For once Larry did something bad when Mr. Mondello wasn’t out of time.”

It was probably the bike at the movies episode, when Beaver disobeys and leaves the premises. So Mrs. Mondello calls and says she doesn't think Larry should keep the bike or something like that.

I'm not too good at season 1 so I'll let someone else take those two.