In 1912 Wilkinson joined the newly formed British Board of Film Censors (BBFC) as its secretary and remained at the board until his retirement in 1948.
Wilkinson has been described as 'a man of Victorian principles and stern moral rectitude', who refused to countenance anything that challenged or disturbed middle-class morality (J. Richards in R. Murphy, ed., The British Cinema Book, 155)
He retired from the BBFC in poor health in early 1948, and died of cardiac failure at his home, 87 Gleneldon Road, Streatham, London, on 15 July 1948. After a funeral service at Streatham Congregational church, he was cremated at the South London crematorium.
(Source Sian Barber)