William C. “Billy” Sime
	
Billy Sime was born in Dundee, Scotland and spent some of his childhood in Chile where his father was a mining engineer. He graduated from the University of Glasglow as a mining engineer. He came to the Yukon via the Stikine Trail and arrived in Dawson in December 1898.((Linda E.T. MacDonald and Lynette R. Bleiler, //Gold & Galena.// Mayo Historical Society, 1990: 452.)) 

Bille Sime and Dolly Mitchell married.((Yukon Archives, V. Faulkner MSS 135 83/50 f.4. Conversation with Al Loblay.)) Dolly arrived in Dawson in 1900. Sime worked as an assayer for a Dawson bank. In 1901, he and three others prospected the Stewart and Hess rivers and trapped at Fairweather Lake. He worked at the bank for ten years and was then in charge of the territorial Assay Office in Whitehorse. Ten years later, the office was moved to Keno during the silver boom of the 1920s and the Simes moved with it.((Linda E.T. MacDonald and Lynette R. Bleiler, //Gold & Galena.// Mayo Historical Society, 1990: 452.)) In April 1921, the businessmen of Whitehorse filed an objection with the Gold Commissioner regarding the relocation of the assay office to the Mayo district.((//The Whitehorse Star// (Whitehorse), 29 April 1921.)) 

The protest was ineffective, and Sime operated the office in Keno for thirty years. He also served as a justice of the peace, staked claims, grubstaked prospectors, and owned the Rio claims on Galena Hill.((Linda E.T. MacDonald and Lynette R. Bleiler, //Gold & Galena.// Mayo Historical Society, 1990: 452.)) In 1938, Sime started developing his Rio claims and by the end of September had a timbered shaft completed down 65 feet. He had owned the undeveloped claims for fifteen years.((//The Whitehorse Star// (Whitehorse), 23 September 1938.))
	
In 1947, Sime had been a widower for many years. He occupied one room on the ground floor of the Keno Assay Office and his domestic and official facilities were inextricably confused. He was involved with several of John O'Neill's companies in the 1950s. In 1952, Sime travelled to Chile but took ill on his return to Vancouver and died there. While he was away, his office in Keno burned with all the records inside.((Linda E.T. MacDonald and Lynette R. Bleiler, //Gold & Galena.// Mayo Historical Society, 1990: 452.))