Over its time, the Dickson Log House has stood as witness to the westward movement of people and goods in the late 18th and early 19th centuries. Merriwether Lewis passed by in 1803 with boats built in Pittsburgh on his way to meet William Clark in St. Louis to start their famous exploration for a northwest passage to the Pacific. Also in 1803, Ohio township was formed as settlements north of the river grew rapidly. The original boundaries of Ohio Township included over 15 present municipalities, from Avalon to Beaver County, situating the House in the heart of America and western Pennsylvania's growth.