During the late 1860s many more boats left Fremantle and the pearling industry at Torres Strait, Queensland for the new fishery at Nickol Bay with its port of Tien Tsin Harbour (later known as Cossack). Thus new technology, in the form of small boats, large containers (in the form of bags and sacks) and then larger vessels operating independently, or as 'mother boats' to a number of dinghies, were the first major advances that the Europeans applied to the pearling industry. Walter Padbury, the noted Perth-based merchant, pastoralist and ship owner, then sent a large boat north up to the early pastoralist John Withnell in partnership with others. They also proved successful, as did many others, including (to name but a few) Charles Harper, who built his own boat, the "Amateur"; Charles Edward Broadhurst a noted entrepreneur and at least two sons of Government Resident RJ Sholl.