COLONEL ALEXANDER CAVALIE MERCER ( 1783 - 1868 ) was a Canadian painter. COLONEL ALEXANDER CAVALIE MERCER s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 545.41 USD for The Race Course, Halifax Common in 2017 to 863.18 USD for Market from Door of Garrison Library, Quebec in 2017 , based on the size and medium of the artwork.