Gustavus Gustaveson
Gustavus Gustaveson and his two sons came into the Yukon in 1898. They prospected and found gold on Duncan Creek, a tributary of the Mayo River. They did not stake their claim as they wanted to keep the strike secret. After several supply trips to Dawson other miners became suspicious and followed them. In September 1901, four miners - Allan McIntosh, Colin Hamilton, Duncan Patterson and Jake Davidson - discovered the Gustaveson's cache and located the mine. They staked claims and called the creek after Duncan Patterson, who staked the discovery. As soon as word spread it caused a staking rush. The Gustaveson's left the country and returned to Sweden with an estimated $30,000 in gold.1)
The Gustavesen Mountains are between the upper fork of Duncan Creek and Lightning Creek.