De følgende maleriene ble oppdaget på bøker fra tidlig 1800-tall på Universitetet i Iowa:

Autumn by Robert Mudie / Special Collections & University Archives at the University of Iowa

Autumn by Robert Mudie / Special Collections & University Archives at the University of Iowa

Spring by Robert Mudie / Special Collections & University Archives at the University of Iowa

Spring by Robert Mudie / Special Collections & University Archives at the University of Iowa

Se flere her.