Trivia: Rebecca Toolan plays David Duchovny's mother in the series, even though in real life she's only a year older than him.
Suggested correction: This entry is actually incorrect. There are records that prove she is much older than what's stated. By 1968, she married her first husband and was a university professor. Https://www.newspapers.com/clip/22109182/wedding-announcement-rebecca-cox-and/.
While there are many conflicting reports about Rebecca Toolan's age, it seems the Wikipedia entry is the most incorrect (which is where you got your source). It seems more probable than not that whoever edited her Wikipedia page linked a article about the wrong Rebecca Toolan.