Cornelis Marinus Willem Mongers ( 1806 - 1875 ) was a Dutch painter. Cornelis Marinus Willem Mongers s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 742.65 USD for De oestereetster in 2004 to 1975.82 USD for A hilly river landscape with a shepherd on a sandy track in 2008 , based on the size and medium of the artwork.