Theodore Cleaver was created in 1957.
Ward Cleaver
True
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.
Answer: June Cleaver
June Cleaver was created in 1957.
Ward Cleaver was created in 1957.
Wally Cleaver was created in 1957.
Beaver
If you mean in the television show from long ago, it was Theodore Cleaver.
The Cleaver family in the TV comedy, "Leave It to Beaver," Were the parents, June and Ward Cleaver, the older son, Wally, and the younger son, called Beaver by everyone except his teacher, who used his proper personal name, Theodore.
When Theodore was born, his brother, Wally (Tony Dow) tried to pronounce his new brother's name but ended up mouthing "Tweeter" which sounded like "Beaver" to his parents, Ward (Hugh Beaumont) & June (Barbara Billingsley) and so began the saga of Beaver Cleaver and the jokes about his name. Beaver's real name, Theodore was based on June's Aunt Martha's brother. Eddie Haskell (Ken Osmond), a wisecracking, insincere friend of teenager Wally Cleaver who called Beaver "Squirt" and "Creep" would greet him with taunts like "Hiya Beaver, you gnaw down any trees today?" In the last episode of the series, June tells Beaver "It kept coming out TWEEVER. In real life, one of the writers - Joe Connelly - had a shipmate in World War II called "The Beaver". and that's how he got the name, and from Beaver they got the name Cleaver. Theodore "Beaver" Cleaver, hated being called "Teddy".