Matilda Lotz ( 1858 - 1923 ) was an American painter. Matilda Lotz s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 5000 USD for Tending the Camels in 2005 to 15034.2 USD for L'oued à Tanger in 2013 , based on the size and medium of the artwork.