Martha Maria Yeardley Smith ( ; Her mother, Martha Mayor, was a paper conservator for the Freer and Sackler Galleries at the Smithsonian Institution. Smith's parents later divorced. Her maternal grandfather was art historian A. Hyatt Mayor, and among her great-grandparents were marine biologist and zoologist Alpheus Hyatt and artist and sculptor Harriet Randolph Hyatt Mayor. She is also the paternal niece of political scientist, historian, and Latin American studies specialist Peter H. Smith. Smith has labeled her family "upper crust and reserved". As a child, Smith was often teased because of her unusual voice. Smith has stated: "I've sounded pretty much the same way since I was six. Maybe [my voice is] a little deeper now." She appeared in the films The Legend of Billie Jean and Ginger Ale Afternoon (1989) as "trailer-park girls".
Yeardley Smith
144 words updated Jun 17, 2026, 11:27 PM