Name The Year: Harry A. Blackmun, U.S. Supreme Court justice?

Questions

Who defined the four freedoms in 1941?

Which bird is nicknamed the Pharoahs chicken?

Which group comprised Cass,Michelle,John and Denny?

Which helpful organisation was founded in 1953 by the Rev Chad Varah?

What wa s the name of the cook in Upstairs Downstairs?