Nellie Connally

A woman was present in John F. Kennedy's presidential limousine on 22 November 1963, the date of the President's assassination. Shortly before the assassination, she was photographed with the other occupants of the limousine in Dallas, Texas. She sat behind the driver, in front of First Lady Jackie Kennedy and to the left of (TV: Rose) Johnnie. (PROSE: Untitled) This photograph was retrieved from the Washington public archive in 2004 by Clive Finch, of interest to him because it featured the Ninth Doctor observing events. (TV: Rose) She was also visible in the version of the picture later obtained by Adam Mitchell. (COMIC: Mystery Date)

Behind the scenes
Connally is not named in Rose or Mystery Date and her marriage to John "Johnnie" Connally was not mentioned either.