Collection consists primarily of depictions of S.M. Simpson's earliest activities in and around Kelowna, starting with his sole proprietorship which operated 1913-1924. During those early years, Simpson operated his business in two different downtown locations. He also ran, or partnered in, various portable sawmills throughout the area. After incorporation, an additional three entities are documented: Kelowna Sawmill Ltd., S.M. Simpson Ltd., and S&K Ltd. Featured also are early photographs of precursors to S.M. Simpson, Ltd., predominantly ca. 1910 - 1939. Early images of The Kelowna Sawmill (KSM) are included, KSM was moved to the Lakeshore site from Okanagan Mission about 1892, and owned by various historic figures local to Kelowna. KSM burned down several times, and was eventually sold to S.M. Simpson in 1942. Much of the mill burned to the ground again in 1944, and while the land was still owned by KSM, and the company was owned by S.M. Simpson.