Robson, William
Kirkcudbright artist painted in Italy on the Island of Capri and later in Kirkcudbright, Scotland. The site details a collection of his paintings.

Richter, Gerhard
Biography and review of the artist's retrospective at the Museum of Modern Art in New York City

Roberts, William
Biographical and bibliographical information on the British artist with reproductions of some works and a list of his works in public collections.