John R Prentice ( - ) is a British painter. John R Prentice s works have been put up for auction numerous times, with realized prices varying from 74.92 USD for Fishing boats off a coast with castle ruins in 2006 to 273.92 USD for 'The Allan River, Dunblane, Scotland', together with another, 'Carbis Bay, near Berwick' in 2010 , based on the size and medium of the artwork.