Who is the eldest daughter of a quartet formed during WWII?
The Carter Sisters: The Carter Sisters, (also known as the second version of The Carter Family) were an American singing quartet consisting of Maybelle Carter and her daughters June Carter Cash, Helen Carter, and Anita Carter. The Carter Sisters:  Formed during World War II, the group recorded and performed into the 1990s. Helen Carter:  The eldest daughter of Maybelle Carter, she performed with her mother and her younger sisters, June Carter and Anita Carter, as a member of "Mother Maybelle and the Carter Sisters", a pioneering all female country/folk music group.
Helen Carter