Has twice portrayed a younger sister of a character played by a
Cartwright sister, both movies which featured large families. She
played Pattie-Cake Spencer to
Veronica Cartwright's Becky
Spencer, two of nine siblings, in
Spencer's Mountain (1963). And
she played Gretl Von Trapp to
Angela Cartwright's Brigitta Von
Trapp, two of seven siblings, in
The Sound of Music (1965).