Was there a real Partridge Family?

The Partridge Family series was inspired by and loosely based on The
Cowsills, a real pop music family famous in the late Sixties. In fact,
in its early development, the Cowsill children were actually
approached by the producers to be featured on The Partridge Family,
though the children rejected the offer when they learned their real
life mother and band member Barbara would not be included in the cast.

This was one of my favorite shows as a kid!

Who was your favorite? Mine was David Cassidy, of course!!!