Sue Branson guessed correctly…

Clue: Born in 1945 and was a familiar personality as a teenager.
Celebrity: Lynda Bird Johnson-Robb. Linda is the daughter of President Lyndon & Lady Bird Johnson, and the wife of Virginia senator, Charles Robb. Today, Lynda is very active with the LBJ Library in Austin, and looking after her 93 year old mother, Lady (Claudia) Bird Johnson.

Today’s new mystery celebrity:

Was a fairly well-known teenager in the 1970’s whose prom location made headlines.