English painter. He studied with J. M. Leigh (1808-60) from 1847 and in January 1851 enrolled at the Royal Academy Schools. In 1852 Marks and P. H. Calderon spent five months studying in Paris under Fran?ois-Edouard Picot and at the Ecole des Beaux-Arts. The next year he made his d?but at the Royal Academy Summer Exhibition, where he exhibited annually until 1897. He was elected ARA in 1871 and RA in 1878.