Jean Vander Pyl
Jean Vander Pyl was an American actress on radio, television and movies. Although her career spanned many decades, she is perhaps best remembered as the voice of Wilma Flintstone for the HannaBarbera cartoon The Flintstones. In addition to Wilma Flintstone, she provided the voice for Pebbles Flintstone. She also provided the voice of Rosie the robot maid from the animated series The Jetsons, among many others, such as Fifi and additional voices in Top Cat and Winsome Witch on The Secret Squirrel Show.
Jean Vander Pyl was born in Philadelphia to John H. and Kathleen Hale Vander Pyl. Her grandfather had come from the Netherlands. Her father was the district manager for Knit Underwear, her mother was a Southerner from Tennessee. The two died within six months of each other in the early 1950s. The family came to Los Angeles by the mid1930s.
Source: Wikipedia