Adriana Caselotti
Adriana Caselotti (May 6, 1916 – January 18, 1997) was an American actress, voice actress and singer. Caselotti was the voice of the title character of the first Walt Disney animated feature "Snow White and the Seven Dwarfs", for which she was named as a Disney Legend in 1994, making her the first female voice actor so named.
Yodeling
Zeke Clements, known as "The Dixie Yodeler" acted in "singing cowboy" Westerns and also provided the voice of Bashful, the yodeling dwarf, in Walt Disney's 1937 film "Snow White And The Seven Dwarfs." Yodeler Hannès Schroll was the voice for the Goofy holler, a stock sound effect that is used frequently in Walt Disney cartoons and films. It is the cry Goofy makes when falling or being launched into the air, which could be transcribed as "yaaaaaaa-hoo-hoo-hooey!"
"Yodelin' Slim Clark" hailed from Maine, and performed for 70 years. Yodeler Don Walser was from Texas. Though he was widely known in Texas, his singing career did not really take off until he was 60 years old in 1994. In 2000 he received a lifetime "Heritage" award from the National Endowment for the Arts, and he and his band played at the Kennedy Center for the Performing Arts. Jimmie Davis, who served two terms as the Governor of Louisiana, was also a successful country singer who yodeled.