There are more than 100 unique "country" codes used in these records. In about 93 percent of them, passengers identified their country of origin or nationality as Germany, Italy, or Russia, or cities or regions of those countries. Passenger records typically include name, age, town of last residence, destination, and codes for the passenger's sex, occupation, literacy, country of origin, transit and/or travel compartment, and the manifest identification number for the ship. Information on each ship is in a separate file and includes the ship manifest identification number, the name of the ship, the code for its port of departure, and date of arrival. The ship manifest identification number indicates the port of arrival.
Access to these new electronic records is available through the National Archives Access to Archival Databases (AAD) system, a research tool that makes a selection of the National Archives' most popular electronic records available to the public over the Internet. The AAD system currently includes almost 80 million electronic records from 50 records series in 30 record groups, and four collections of donated historical materials. AAD highlights include records of passengers who arrived at the Port of New York during the Irish Famine, World War II Army enlistment and Prisoners of War, records of Japanese-American internment, and Central Foreign Policy Files from the Department of State.