British folk art has been shamefully neglected in the land of its origin, as if the popular handiwork of past generations is an embarrassment to our cultural gurus and the kind of supposedly hip commentators who sneer at morris dancing. Last May I reviewed the archive display at the Whitechapel Gallery of Black Eyes and Lemonade, which re-visited the 1951 Whitechapel exhibition of the same name, a survey of vernacular art in Britain curated by the artist Barbara Jones; but that show, more than 60 years ago now, was probably the only specifically folk art exhibition in a major museum...