Ketch Broughton was sunk at the Wallaroo jetty 10 April 1932. Unlike the ketch Vivid which also foundered in the same storm with the loss of all hands, Broughton was later raised, and repaired. Broughton had been built at Port Adelaide in 1873 as a single screw steamer, and had her steam engine removed 12 months later and was converted into a schooner.

Some time later Broughton was ketch rigged and in 1915 an auxiliary engine was installed. The vessel was built specifically for trading between Port Broughton and Port Pirie but several changes of ownership saw her trading widely in both gulfs. Broughton was finally wrecked near Port McDonnell in July 1947.

Ketches and schooners made up a mosquito fleet of coastal traders which carried supplies and cargoes between the scattered communities along South Australia's coast. Cargoes included the staple exports of ore, wool and various grains including wheat and barley, flour, hides, potatoes, tallow and wattle bark for tanning. Inwards goods were all manner of supplies essential for the townspeople and outlying farms and properties: bales of wire, bedding, fruit and vegetables, canned goods, clothing and fabric etc.

The mosquito fleet was gradually replaced by railways and later by road transport. The final straw for many ketch owners was the installation of bulk handling facilities for ores, grains and fertilizers at the major ports.