Which profession saw a dramatic increase
in demand because of the Civil War?

Demand for materials needed to create the railroad stimulated the economy.This profession lost public confidence due to many frauds.  The first half of the nineteenth century saw a dramatic increase in the number of law schools  formal standards explains why there were so many attorneys in the pre-Civil War period. this is the explaination i found in my book and from my knowledge

Explanation:

one of the major compromises in the constitutional convention was between the small states and big states. the small states wanted each state to have the same number of representatives in congress. the big states wanted representation based on population.