John Kuhl, a Hunterdon historian of the Civil War, pointed out to me in an email that
“Bonds and loans initially financed the war, the 5-20s, 7-30s, and 10-40s as advertised in the local newspapers. And the increased taxes took it from there. Besides your income tax, there were hefty boosts in real estate taxes to especially cover the local soldier bounties paid by the municipalities.”