Gertrude Priestman ( 1800 - ) is a British painter. Gertrude Priestman s works have been put up for auction numerous times, with realized prices varying from 30.1 USD for Warton Cragg Across Morecambe Bay in 2004 to 84.19 USD for A Black Cockerel with a Hen in 2005 , based on the size and medium of the artwork.