Show richest woman in canada dies a at age of eighty victoria B C mrs joan olive dunsmuir widow of tho the late robert dunsmuir discoverer of the wellington ng coal mines on vancouver island died hero here on friday mrs airs dunsmuir who was probably the richest woman in canada celebrated her eightieth birthday five weeks ago at the time of her death mrs airs dunsmuir was on cn in a suit brought against her son eon lieutenant governor dunsmuir asking for an accounting of the estate valued at about |