Duncan Mackinnon Crockford ( 1922 - 1991 ) was a Canadian painter. Duncan Mackinnon Crockford s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 637.04 USD for EVENING, CRESCENT BEACH in 2005 to 3239.85 USD for AUTUMN ALONG THE KANANASKIS, ALTA in 2007 , based on the size and medium of the artwork.