[4] Vincent was extremely cruel, and eventually his overtly brutal treatment of the prisoners concerned even the colonial authorities, to the extent that the Governor sent an investigator to the island.
Vincent managed, with the aid of his Aboriginal prisoners, to build and successfully run a farm on the island.
[6] Most of the development took place in Thomson Bay; of particular significance is the Quod that was the prison accommodation for the Aboriginal men.
In the early part of his tenure, he brought some very interesting construction techniques to roofing probably learnt from his experience in France.
He retained a property in Fremantle the frontage of which still exists in 2020 although it is concealed by a much later addition extending from the street boundary.