Post-war volunteering

Why does a dominant version of the history of volunteering suggest that volunteering reached a low ebb during the years after 1945 until a “volunteer boom” in the 1960s?

A working paper published by the Institute for Volunteering Research addresses this question – a quick overview at http://www.vahs.org.uk/2013/06/volunteering-before-1960/?fb_source=pubv1 or download ‘Towards a new understanding of volunteering in England before 1960’ (pdf, 479KB).