"Perhaps a greater defence than their spears and blow-pipes even had been more ruthlessly destroyed. Their old people, both women and men, respected for character and ability to wisely advise, had been marked from the first as dangerous, and in the early stages of the occupation were done to death. Their crime had been the giving of 'bad advice.' To warn the more credulous or less experienced against the white enslaver and to exhort the Indian to flee or to resist rather than consent to work rubber for the new-comers had brought about their doom. I met no old Indian man or woman, and few had got beyond middle age. The Barbados men assured me that when they first came to the region in the beginning of 1905 old people were still to be found, vigorous and highly respected, but these had all disappeared, so far as I could gather, before my coming."
January 1, 1970
https://en.wikiquote.org/wiki/Roger_Casement