Marvin Faye Chism (born 1944) was a very close witness to the assassination of President John F. Kennedy within Dealey Plaza in Dallas Texas on November 22, 1963.
Faye, her husband, John, and their 3-year-old son, Rickey, were all standing together right up to Dealey Plaza's Elm Street north sidewalk curb, located at the eastern base of the grassy knoll. Chism was only 16' from President Kennedy at the closest point that he passed her during the assassination.
The Chisms were not filmed during the Zapruder film because they were hidden by the "Stemmons Freeway" road sign, but they are clearly visible in many other films, photos, and slide-photos captured before, during, and after the assassination.
Chism and her husband each voluntarily provided a written affidavit to the Dallas county sheriff's department on the day of the assassination, but neither of them were ever called to testify to the Warren Commission.