 Complete the following phrase:  At age 13, Smith worked as a clerk on a Lake Erie freighter, where he learned business practices and probably met traders returning from the far west to Montreal. This work gave Smith an ambition for adventurous wilderness trade. According to Dale L. Morgan, Smiths love of nature and adventure came from his mentor, Dr. Titus G. V. Simons, a pioneer medical doctor who was on close terms with the Smith family. Morgan speculated that Simons gave the young Smith a copy of Meriwether Lewis and William Clarks 1814 book of their 