In 1847, farming was for subsistance existance. Today, farmers are a minority.
Families crowd supermarkets to bring home the meals that week.
With so few farmers, it is strange that growing crops or livestock is not considered a specialty field. Maybe because production is in large amounts. Coal mining and farming as a profession started to take shape after the 1900s, and most people found themselves in one of those two fields. If you weren't one you were the other. A lot did both.