Source Information

Ancestry.com. U.S., Applications for Authorization for Inter-Island Travel, 1947-1952 [database on-line]. Lehi, UT, USA: Ancestry.com Operations, Inc., 2015.
Original data:

Applications for Authorization for Inter-Island Travel Certificates by Residents of the Northern Marianas Islands. Microfilm Series A3972. NAID: 2663405. Records of the Immigration and Naturalization Service, 1787–2004, Record Group 85. The National Archives at Washington, D.C.

About U.S., Applications for Authorization for Inter-Island Travel, 1947-1952

Details on the applications for authorization for inter-island travel varied, but they typically include the name of the vessel and arrival date, full name, age, gender, race, and/or nationality. Applicants authorized to travel during this time period were primarily residents of the Northern Marianas Islands, Saipan District, Trust Territory of the Pacific Islands.