Kenneth Mackenzie, a close relative of Sir Alexander Mackenzie co-founded the Columbia Fur Company in 1822 trading in the upper MIssouri. This company later merged with the American Fur company and Mackenzie became known as the “King of the Upper Missouri”

Kenneth Mackenzie 1847 prestamp N.Y./St. Louis FLS ex Risvold
Lot 68 in our auction Saturday 3rd April 2021