This answer follows up on the previous answer and its comments --
According to the descriptive pamphlet for NARA's Microfilm publication m1411, describing Passenger and Crew Lists of Vessels Arriving at San Francisco, CA, December 1, 1954--February 1, 1957. M1411. 19 rolls., these records are
arranged in chronological order by date of arrival. Passenger lists are form I-415 (manifest of inbound passengers, alien) and I-416 (manifest of inbound passengers, US citizens or nationals).
The USCIS Genealogy program page on Researching Individuals says:
Arrival after May 1, 1951
All immigrants admitted since May 1, 1951
should be entirely documented in an A-File, a unified folder intended
to hold all records related to one individual. A-Files numbered 8
million and above (arrived May 1, 1951 and after) are available
through the USCIS Freedom of Information Act Program (FOIA).
If you want to see what some of the A-files look like, you can search in the National Archives catalog. Files are contained in two series.
- Files held at Kansas City: Alien Case Files 1940-2003 (NARA ID 4488912 – then “Search within this series”)
- Files held at San Francisco: Alien Case Files 1944-2009 (NARA ID 6105565 – then “Search within this series”)
Once you have chosen to search within the individual series, look on the left-hand side of the page for the filter Refine By: Data Source and you can choose to filter for Archival Descriptions with Digital Objects. That will show you which files have been scanned and attached to their catalog description.
Searching the Code of Federal Regulations: 1949-1984 that was referenced in the previous answer for the phrase "Form I-415" describes what travel documents should be listed, and how, in Section 231.21, subpart B, subsection (f) Listing documents. That section lists some possibilities:
- Foreign Service Form 256 or 257
- Immigration Form I-100a
- Immigration forms I-132, I-419
- Immigration Form I-94
You may be able to see which forms are numbered starting with I followed by six digits by looking in the files which have been posted online.