The term "clerk", like "merchant", covers a wide range of endeavor. Indeed, qualifications needed for success as a clerk were much like that of the merchant as detailed by Postlethwayt in The Merchant's Public Counting House (1750): some acquaintance with the commodities of trade, command of foreign languages, knowledge of bookkeeping, shipping, foreign weights and measures, tariffs, foreign exchange, and the stock and produce markets.
No one clerk, as no one merchant, could have complete command of all these particulars and so specialization in trade and commerce took place. For one aspiring to the merchant or trader class, or one of the specialized commercial adjuncts, a term, usually as apprentice, as a clerk in the countinghouse was to be expected.
Thus, the clerk was no lowly scrivner, though some there might be. From the ranks of the clerk came literary notables such as Charles Lamb, the insurance brokers of England, and many of the trading partners of North America's North West Company, the largest fur company in the world during it's time in the late 18th and early 19th century.
The Clerk is available for presentations regarding the life of the clerk, the fur trade of the North West Company, accounting and paperwork of the era as it relates to the fur trade. The Clerk's skills are also demonstrated by way of the cutting of quills and the manufacture of ink using the correct recipe of the 18th century.