Port Huron Oaths on Registry, License, or Enrollment and License of Vessel, 1941-1960; Index of Registers, 1867-1879; Temporary Registry, 1867-1874; Certificates of Registry, 1891-1898; Copies of Certification of Registry, 1918-1921; Annual Material for Merchant Vessels of the United States, 1917-1937; Record of Marine Documents Deposited, 1918-1958; Abstracts of Tonnage from Enrollment records, 1919-1937