Would Childe and Sharpe count? I don't know so much about Childe but I know that Cecil Sharpe wasn't interested only in collecting but also in preserving English country songs and dances. The urge to collect was associated with the urge to preserve and continue a tradition that he saw dying out. Did he ever perform any of his collection? I think he saw himself as a bridge and champion between the 'peasantry' and the middle class.