Lyndon King Armstrong Papers, 1897-1941

Lyndon King Armstrong was born at Mukwanago, Wisconsin in 1859. From 1877 to 1890 he was a druggist, chemist and miner in the Dakota and Montana Territories. Settling in Spokane, Washington in 1890, he became the publisher of mining trade newspapers. He also established a mining engineering practice and was involved in certain business ventures in mining. Armstrong was a member and officer of many of the trade and professional organizations associated with mining in the Northwest, most notably the American Institute of Mining and Metallurgical Engineers. Additionally he was active in the Spokane Chamber of Commerce and in various scientific and scholarly organizations, including the Northwest Scientific Association and the Eastern Washington Historical Society. He died in early 1942.