According to Wikipedia Catherine Bach's 50% Mexican, Lynda Carter less than that.

https://en.wikipedia.org/wiki/Catherine_Bach

Bach was born in Warren, Ohio,[1] the daughter of Norma Jean Kucera (née Verdugo), an acupuncturist, and Bernard Bachman, a rancher.[4][5] Her mother was of Mexican descent and her father was of German ancestry.[6][7]

https://en.wikipedia.org/wiki/Lynda_Carter

Carter was born in Phoenix, Arizona, the daughter of Juanita (née Córdova) and Colby Carter.[1][3] Her father is of English and Scots-Irish ancestry, and her mother, whose family hailed from Mexico, is of Mexican, Spanish and French descent.[4][5]

This is a lie.

https://invidio.us/watch?v=95yHV3I2M9o :

Jessica Simpson in The Dukes of Hazzard - YouTube

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