Biography · Biography & Culture
Mary Cosby
1972–
United States
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Biography
Mary Martha Cosby (née Jefferson, formerly Harris; born October 17, 1972) is an American television personality. She is best known as an original cast member of the Bravo reality television series The Real Housewives of Salt Lake City.
Sources & collection details
Wikipedia contributors — original record ↗
Biography text · CC BY-SA 4.0 · Source checked 2026-10-13