Darleen Carr has two sisters, one is Shannon Farnon, the other was best known for her role in the 1965 film version of what?
Darleen Carr: Darleen Carr (born Darlene Farnon; December 12, 1950) is an American actress, singer, and voice-over artist. Darleen Carr:  She has two sisters, both actresses (Shannon Farnon and Charmian Carr). Charmian Carr: Charmian Carr (born Charmian Anne Farnon; December 27, 1942 – September 17, 2016) was an American actress and singer best known for her role as Liesl, the eldest Von Trapp daughter in the 1965 film version of "The Sound of Music".
The Sound of Music