Richard Augustus Clack ( 1804 - 1881 ) was a British painter. Richard Augustus Clack s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 283.09 USD for Portrait of two young boys in 2004 to 1419.51 USD for Portrait of Master R.A. Kennaway in 2013 , based on the size and medium of the artwork.