There is an exhibition at the Santa Barbara Museum of Art up right now that works in tandem with the "London Calling" British Art Exhibition at the Getty Museum (on view until Nov 13, 2016). The Santa Barbara show focuses on British art from Whistler to WWII, which is exactly where the Getty show takes off. It's well worth the visit.
Edward Wadsworth, "Riponello, a Village in Lemnos, 1917, Woodcut in three colors
Sir Stanley Spencer, "Oxfordshire Landscape" 1939, Oil on Panel