Jasper Stewart is my great grandfather. He became a farmer and landowner in Canterbury, New Zealand and died a wealthy man. Not bad going from where he began! I believe that he was only 14 when he emigrated to NZ as a shepherd.
Helen Stewart's mother, Agnes, registered his birth. A year later a James Stark declared his paternity of the child. Jasper was living with his grandparents in 1871.
I, too, have failed to sort out what happened to his parents - did they marry? I am leaning toward not.