John, Augustus. Augustus John paintings on display in art museums.
Augustus John. National Portrait Gallery, London.
Augusus John. The Royal Academy
Augustus John. Spartacus Schoolnet introduction.
Augutus John. Arfund for the UK, a database of works by Augustus John in museums and collections.
Augustus John. Wikpedia entry.
Johns, Jasper. Jasper Johns paintings in art museums.
Jasper Johns. National Gallery of Art
Jasper Johns. Flag at the Museum of Modern Art
Jasper Johns. Wikipedia entry.
Jasper Johns. Art museums displaying artworks.
Jasper Johns. Art Institute of Chicago
Jaspar Johns. MOMA
Jaspar Johns. LACMA