Final answer:
To set up a hay, feed, and grain business in 1894 in Galesburg, Illinois, Sam would likely need several thousand dollars considering the historical financial context and capital interest examples provided.
Step-by-step explanation:
To estimate how much old-style money Sam would have needed to set up a hay, feed, and grain business in Galesburg, Illinois, in 1894, one would require more specific economic data from that period. However, considering the historical context and examples provided, to set up a business with a modest beginning in the late 19th century could have ranged significantly based on the scale of the operation and initial costs such as real estate, inventory, equipment, and other startup expenses.