NARA Declassified: Longest JFK Assassination Records on James Walton Moore and Grayson L. Lynch

Most declassified memos are one or two pages of routing slips and redactions. But when the National Archives releases a single file containing 440 pages, it signals a massive operational footprint. Page count is the most reliable metric for identifying deep-research targets in the NARA JFK assassination records.

Key takeaway: The longest declassified JFK files from the 2022 and 2023 releases include a 440-page FBI Director report, a 379-page CIA asset volume, and a 338-page dossier on CIA officer James Walton Moore.

Unearthing Extensive JFK Assassination Records

The sheer volume of paper generated by an intelligence subject tells a story. A 300-page file means decades of surveillance, multi-agency coordination, or a complex internal review.

We analyzed the longest declassified documents from recent NARA releases. These are not standard administrative cables. They are multi-volume declassified reports, station histories, and operational logs.

Here is a breakdown of the most extensive files by page count:

Document Title	Agency	Pages	Release Date	Original File
124-10273-10071	NARA	440	2022-12-15	archives.gov PDF
104-10219-10067 — (ASSET) (LIHUFF) VOL. I - 50-124-28/4 (PRODUCTION)	NARA	379	2023-05-11	archives.gov PDF
104-10224-10000 — LYNCH, GRAYSON L., OP.	NARA	376	2023-06-27	archives.gov PDF
104-10194-10012 — CIA FILE ON JAMES WALTON MOORE.	NARA	338	2023-06-27	archives.gov PDF
104-10175-10025 — LIRING-3	NARA	320	2023-04-27	archives.gov PDF
124-10274-10031	NARA	304	2022-12-15	archives.gov PDF

The James Walton Moore CIA File: 338 Pages of Declassified History

The James Walton Moore CIA file spans 338 pages. Released in full on June 27, 2023, this file represents a significant chunk of the JFK 2023 release topic.

Moore was the head of the CIA's Domestic Contacts Division in Dallas. His proximity to George de Mohrenschildt—a known associate of Lee Harvey Oswald—makes his operational file critical.

Here's the thing:

The metadata tags this file with the comment "NOT BELIEVED RELEVANT (NBR)." Yet, the agency maintained hundreds of pages on his activities. Researchers tracking Texas-based intelligence networks use this document to map the CIA's domestic footprint in the early 1960s.

Grayson L. Lynch Operations: A 376-Page CIA Document

Even longer than Moore's file is the dossier on Grayson L. Lynch. The Grayson L. Lynch declassified file runs 376 pages.

Lynch was a legendary CIA paramilitary officer. He was the first American to land at the Bay of Pigs and fired the first shots of the invasion. The sheer size of this file points to extensive operational logging.

Like Moore's file, it carries the "NBR" designation in the JFK review metadata.

But there's a catch.

Files marked NBR were often withheld for decades precisely because they detailed sensitive sources and methods outside the direct scope of the assassination. A 376-page paramilitary file released in 2023 offers raw data on CIA operational tradecraft during the Kennedy administration.

Mexico City Station History: 248 Pages of CIA Operations

Mexico City is the geographic center of the JFK assassination mystery. Oswald's visit to the Soviet and Cuban embassies there remains heavily scrutinized.

The CIA Mexico City Station history provides the definitive internal account of that outpost. Authored by Anne Goodpasture on November 16, 1978, this document totals 248 pages.

Goodpasture was a key aide to Station Chief Winston Scott. She managed the photographic surveillance operations targeting the embassies.

This specific release, 104-10414-10124 — MEXICO CITY STATION HISTORY (archives.gov PDF), strips away previous redactions. It details the exact surveillance infrastructure in place during the fall of 1963.

The 440-Page FBI Director's Report to the Attorney General

The single largest document in this dataset comes from the FBI, not the CIA. It is a 440-page report from the FBI Director to the Attorney General.

Dated April 9, 1975, this textual document was processed as part of the JFK 2022 release topic.

The timing is highly specific. April 1975 places this report right in the middle of the Church Committee and Pike Committee investigations into intelligence abuses.

Truth is:

A memo of this size to the Attorney General during the height of congressional probes is a defensive posture. It represents the Bureau compiling massive amounts of data to justify or explain past operations.

Early FBI Field Reports: Clements and Flynn

Long before the 1975 investigations, the FBI generated massive field reports immediately following the assassination.

124-10075-10088 is a 238-page report submitted by Manning C. Clements on January 17, 1964. Clements was the FBI agent who interviewed Oswald shortly after his arrest in Dallas.

Similarly, 124-10211-10300 is a 220-page report from James P. Flynn dated January 31, 1963. Both of these files were released as part of the 2017 and 2018 NARA batches.

These early 1960s documents establish the baseline narrative the FBI constructed. When compared against later CIA releases, they highlight exactly where the two agencies diverined on intelligence sharing.

Intelligence Agency Pushback: The SSCIA and Book V Responses

The mid-1970s investigations forced intelligence agencies to generate hundreds of pages of rebuttals and internal reviews.

157-10014-10144 is a 264-page report from the Senate Select Committee on Intelligence Activities (SSCIA) generated in 1976. It outlines the systemic failures of the intelligence community.

The CIA did not let that report stand unchallenged.

104-10422-10355 — BOOK: COMMENTS ON BOOK V, SSC FINAL REPORT: THE INVESTIGATION OF THE ASSASSINATION OF PRESIDENT KENNEDY: PERFORMANCE OF THE INTELLIGENCE AGENCIES is the agency's direct response. Drafted by S.D. Breckinridge on August 30, 1977, this 257-page document is a line-by-line defense of the CIA's performance.

Cryptonyms and Defectors: LIRING-3, LIHUFF, and Nosenko

Beyond the headline files, several other massive documents exist in the documents archive. These files track specific assets, defectors, and internal reviews.

Key multi-volume releases include:

• The LIHUFF Asset File: A 379-page production volume on a specific intelligence asset, released in May 2023.
• The LIRING-3 Dossier: A 320-page operational file released in April 2023.
• The Nosenko Study: 104-10210-10009 — CIA STUDY: 'CONCLUSIONS AND COMMENTS IN THE CASE OF YURIY IVANOVICH NOSENKO is the CIA's internal 1968 review on KGB defector Yuriy Nosenko, running 267 pages.
• Unnamed Asset Files: 104-10174-10069 — CIA FILE ON (ASSET) contains 154 pages of operational data.

Each of these files requires dedicated textual analysis. They are not summaries; they are the raw, page-by-page operational logs of the Cold War intelligence apparatus.

Quick Takeaways

• Page count equals operational depth: Documents exceeding 200 pages, like the 338-page James Walton Moore file, indicate heavy surveillance or deep institutional involvement.
• "NBR" doesn't mean useless: Files marked "Not Believed Relevant," such as Grayson L. Lynch's 376-page dossier, contain massive amounts of raw operational tradecraft.
• 1975 was a turning point: The 440-page FBI Director report and the 257-page CIA rebuttal to the SSCIA show agencies compiling vast defensive files during congressional probes.
• Mexico City is fully documented: Anne Goodpasture's 248-page station history provides the exact layout of CIA surveillance during Oswald's 1963 visit.