Elizabeth Blackwell (after) ( 1710 - 1774 ) was an American painter. Elizabeth Blackwell (after) s works have been put up for auction numerous times, with realized prices varying from 67.51 USD for Pellitory of the Wall; Water melon; The vine; The Medlar Tree in 2010 to 369 USD for Larkspur and "Starwort or Aster Attic" in 2011 , based on the size and medium of the artwork.