At the start of the Civil War, Arthur was assigned to the Quartermaster General’s office, quickly proving to be an excellent administrator. By July 1862, Arthur had been promoted to Quartermaster General, and during his time in that post he far exceeded New York’s quota of troops – at a critical time for President Lincoln. In 1871, Arthur was nominated to be the Collector of the New York Customhouse. The Customhouse handled millions of dollars of the nation’s customs receipts and the collector was responsible for managing the patronage system that was the basis for hiring and firing employees.