Yes, he did a bit of everything - as a lot of kiwis did at that time. Mile and half mile grass tracks, early versions of scrambles and US style hillclimbs. Once speedway became established and he effectively turned professional, riding at anything else became rare. He told of outings on grass at the end of the speedway seasons - and the good money available at times from that.
His last competition outing was at 72 when he "borrowed" my brother's 250 Guzzi and rode it in a clssic support race at the NZ roadrace GP meeting. He wasn't last either.