Dart 's closest ally was Robert Broom whose discoveries of further Australopithecines ( as well as Wilfrid Le Gros Clark 's support ) eventually vindicated Dart , so much so that in 1947 Sir Arthur Keith said '' ... Dart was right , and I was wrong '' .
Dart 's closest ally was Robert Broom whose discoveries of further Australopithecines ( and Wilfrid Le Gros Clark 's support ) eventually vindicated Dart .