Of the states of the Union, Maine sent a higher percentage of its population to battle than any other. Out of 600,000 people, 80,000 served. Of this number, 3,184 were killed in battle and 5,257 died from disease. Cholera, dysentery, measles, malaria, yellow fever, septicemia, and pneumonia were more lethal than Minie balls. The farm boys who had never lived anywhere else had no immunity to anything, and as the historian Bruce Catton wrote, it was dangerous simply to be in the Army.