Rose Marie "Rosemary" Kennedy (September 13, 1918 – January 7, 2005) was the oldest daughter born to Joseph P. Kennedy Sr. She was a sister of John F. Kennedy president, Senators Robert F Kennedy and Ted Kennedy. Her father arranged a prefrontal lobotomy on his daughter Rose Marie in 1941 when she was 23 years of age.

The procedure failed, leaving her permanently incapacitated and rendering her unable to speak intelligibly. She spent most of the rest of her life being cared for at St. Coletta.

Rose had a 1950 Oldsmobile coupe, but no longer used it.  Mary’s uncle who was working at St. Coletta, purchased it in 1953.