Thank you all for your very useful information. I think I have all the info from English sources about William Edmond Hensher but am now trying to trace his perambulations around the world! What he says about New Zealand to his son, my grandfather in his final letter in April 1903 (he died a month later) is …..'but my boy, your first experience on your first voyage was not a patch on mine when I went to New Zealand as an imigrant (sic) - half starved and like pigs'.
Re the Hensher and Co mining company mentioned in Victoria 1881 - it could well have been William Edmond as he was trading later as Hensher and Chadwick, the company being wound up in London in 1902. Even though he had married in South Africa in 1880. His in-laws, the Beckett family had been in Campbells creek inform 1864.