John Grainger (born 1951) was the son of Edward Grainger. (PROSE: First Born, Dear John, Testament)

In 1956, at the age of five, John was haunted by a manifestation of his father's "dark side". The Eighth Doctor saved John by trapping the spirit back inside his father. (PROSE: Dear John)

John was the father of Linda Grainger. (PROSE: Forgotten)

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