Yes. AP and Sara were married to each other. Ap's brother Ezra (why does one never read anything about him?) married Maybelle who was a first cousin of Sara's.

Ezra and Maybelle had three daughters: Anita, Helen and June.
After the original Carter family disbanded, Maybelle played and recorded with her daughers.

AP and Sara had two children: Janette and Joe. Janette plsys autoharp; Joe played guitar. (Joe died this spring.)

A number of years ago Janette started a weekly music jam/open mic in the old country store then built a large barnlike hall that is now called 'Carterfold'.

Janette has a son, Jett, who does not like to perform, going by what he said in an interview. I have a video of his singing a severly truncated version of 'Give Me the Roses' and being a nervous wreck.

Believe me, I understand these convolutions- I was raised Amish! :)