A ferry connection was established from Neptune Island, under the control of Simeon Leland. At the end of the war, Congress authorized the island's purchase for military purposes, and it was conveyed to the United States in 1867. From this date, the federal government operated its own ferry to and from Neptune Island. In July 1878 Davids Island was made a principal depot of the U.S. Army General Recruiting Service, taking over this assignment from Governors Island. This marked the beginning of the installation's longstanding mission as a recruitment and training center.