The original members were Dorothy Compton and Mary Moder[1] with Anna Lou Barnes and Betty Bruce performing as the third member in the early- to mid -1930s.[2]: 84 Bruce wrote the musical arrangements for the group.[3]
By 1933, the trio was with Al Pearce's radio show, The Happy Go Lucky Hour, on radio station KHJ in Los Angeles.[4] They performed on stage with the rest of Pearce's group in the United States and Canada.[5][6][7]
Compton, Moder, and one other member were heard in Disney's Silly Symphony shorts, including Old King Cole (1933),[2]: 128 Lullaby Land (1933),[2]: 130 and Funny Little Bunnies (1934).[2]: 142 Various members of the Rhythmettes would appear in other shorts, including Birds of a Feather (1931),[2]: 84 Three Little Pigs (1933),[8] and The Practical Pig (1939).[2]: 206 In addition to singing, individual members performed voicework for characters in several Silly Symphony shorts. Dorothy Compton voiced of Fiddler Pig[9] and Mary Moder voiced Fifer Pig in Three Little Pigs (1933).[2]: 124 A 1934 article in Hearst's International-Cosmopolitan reported that the trio "do not broadcast that they are the Three Little Pigs because they want more work at the Disney art shop".[10]
Compton left the trio in 1934.[11] In The Practical Pig (1939), Moder reprised her role as Fifer Pig and Bruce took over Compton's role of Fiddler Pig.[2]: 206
The trio were heard on several songs in The Wizard of Oz, including "Munchkinland" (the vocals after Dorothy arrives in the Munchkin village), a reprise of Dorothy's "Over the Rainbow", and "Optimistic Voices", which plays as Dorothy and her friends escape the field of poppies and approach the Emerald City.[12]
^Nye, Carroll. "Vallee Gives Sunshine Program: Crooner Sings in Hollywood. James Cagney to Appear in One-Act Playlet KMTR Makes Bow With New Variety Offering New Song Hits Featured in KHJ All-Star Revue." Los Angeles Times. 14 Dec 1933: 16. Via Proquest.