Until the 1960's people dressed in a more formal way. Women, at least well-groomed women, never left the house without hat and gloves. Men also wore hats and suit and ties were more common than blue jeans.
Early TV programming also showed a more idealistic American family, not just the Cleavers but the Andersons of Father Knows Best and the Nelsons, as in Ozzie and Harriet. Life may not have been quite that perfect but in the 1950's that's what was on TV.
But according to her obituary in the NY Times, Barbara Billingsley wore the pearls to cover a hollow in her neck (which other sources attribute to surgery) and that "in the beginning of the show, she wore flats; the heels were an attempt to stay taller than the growing boys."
Wally Cleaver
June Evelyn Bronson Cleaver (Barbara Billingsley) - Ward Cleaver (Hugh Beaumont) - Wally Cleaver (Tony Dow) - Theodore "Beaver" Cleaver (Jerry Mathers) .
The Beaver's real name was Theodore Cleaver.
Jerry Mathers played Theodore 'Beaver' Cleaver in all 235 original episodes of Leave It To Beaver, which aired from 1957 to 1963.
Cameron Finley played in the role of Theodore "Beaver" Cleaver .
Cameron Finley played in the role of Theodore "Beaver" Cleaver .
Beaver's mother June Evelyn Bronson Cleaver for all 234 episodes of Leave It To Beaver was played by the late Barbara Billingsley (December 22, 1915 - October 16, 2010) .
If you mean Cleaver family then it was "Leave It To Beaver".
Wally Cleaver was a character on the Leave It To Beaver show. The first episode of Leave It To Beaver ran on October 4, 1957. The final episode ran on June 20, 1963.
In the 1997 film "Leave It to Beaver " the role of Beaver was played by Cameron Finley .
Mr. Rutherford
Wallace (Wally) Cleaver