A Happy Family is a 1935 short animated film by Columbia Pictures, and part of the Krazy Kat series.
Krazy receives a telegram from his Uncle Egbert who is coming to visit as well as bringing some relatives.
Although the car is only the size of a station wagon, hundreds of cats come out and file into Krazy's house.
Finally, Uncle Egbert shows up and courteously greets Krazy, as well as introducing him to Cousin Katfish (a character from the Krazy Kat comic strip, though drawn here as a taller figure).
At first, things appear okay at home when the older cats are just having a meal, but Krazy becomes dismayed when the kittens do some roughhousing.