William V. Bidwill Sr. (born July 31, 1931) is the principal owner and chairman of the board of the Arizona Cardinals of the National Football League (NFL). He was co-owner from 1962 for ten seasons with his brother Charles Jr. and has been sole owner since 1972.
The Arizona Cardinals football team had been already founded in 1962.
It states that they were owned by William V. Bidwill Sr. in 1962 so that means that is when they were founded or prior to that.