Bert Cartman was born in 1900.
Bert Cartman died in 1955.
William Cartman was born in 1861.
In the episode "Damien" Cartman is having a birthday party this episode aired on Wednesday 4th February, Cartman said his birthday was on Saturday which would be on February 7th. Also, many fans believe his birthday is July 1st making him youngest of the boys, But that is most likely untrue. So, Cartman's birthday is unknown at the moment.
Bert Joris was born in 1957.
Bert Davie was born in 1899.
Bert Schenk was born in 1970.
Bert Boeren was born in 1962.
Bert Bushnell was born in 1921.
Bert Lister was born in 1940.
Bert Millichip was born in 1914.
Bert Hellinger was born in 1925.
Bert Hoare was born in 1874.