John Mckirdy Duncan ( 1866 - 1945 ) was a British painter. John Mckirdy Duncan s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 282.54 USD for The Bridge, Killin in 2003 to 60683.89 USD for MARY, QUEEN OF SCOTS in 2008 , based on the size and medium of the artwork.