In the aftermath of W.W. I, unschooled artists began to find their way into the elite art world, a development that newspapers of the day described as “crashing the gates.” Among the self-taught were John Kane, Horace Pippin, and Anna Mary Robertson, otherwise known as “Grandma” Moses. In the 1930s and 40s, it was talents like these who began opening space for the outsider artists we see today. More than a dozen “gatecrashers” are on view in this exhibition. —E.C.