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JFK Research Center

A research reading room for records related to the assassination of President John F. Kennedy, drawn from the U.S. National Archives Catalog.

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Records sourced from the U.S. National Archives Catalog, ABBYY JFK-OCR, and allowlisted primary-source reports. Transcriptions and OCR are machine-generated and may contain errors.

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Documents Mentions Semantic14 results

Scope: This research tool indexes 37,141 records - a curated subset of the ~300,000 documents in the JFK Assassination Records Collection. Releases indexed: 2017-2018, 2021, 2022, 2023, 2025. 2,165 records have full-text OCR indexed - of those, 2,162 are sourced from the 2025 re-release (NARA has not yet published an XLSX manifest for 2025; each document’s prior-release history is shown on its page). Releases not yet indexed: 2026. Methodology

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FBI18,005CIA15,955HSCA1,226Department of Defense315NSA299SSCIA258Senate (Church Committee)253Senate236Department of State79NARA47JCS45U.S. Marine Corps45Department of Justice33U.S. Secret Service32ROCKCOM24WC24ARMY24DOS17LBJ14KISS/SCOW11MATHENY7INSCOM6OSD4BUCHEN/DAN4DUVAL78-673CAR/HARDY3BUCHEN78662DAVIS2CHENEY2

1950 – 2004

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Document matches | 14

Results for MARCOS DIAZ LANZ.

Results14Current document, mention, or semantic mode Entities32People, agencies, places, and concepts Topics11Curated subject lanes TimelineChronology routes for this query QuestionsOpen-question routes

Visible OCR

0/14

High confidence

Top agencies

CIA 14

Dense years

1959 5 / 1974 4 / 1960 3

CIA|December 10, 1974|PAPER - TEXTUAL DOCUMENT|NAID 104-10167-10238

SourceCIATextMetadata onlyRecordNAID 104-10167-10238

CABLE RE MARCOS DIAZ LANZ.

CIA · From: DIRECTOR · To: WITHHELD · JFK64-6 : F9A : 20040301-1052140 : · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER - TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper - Textual DocumentRelease 2022

CIA|October 25, 1974|PAPER - TEXTUAL DOCUMENT|NAID 104-10167-10240

SourceCIATextMetadata onlyRecordNAID 104-10167-10240

CABLE RE MARCOS DIAZ LANZ.

CIA · From: CIA · To: FEDERAL BUREAU OF INVESTIGATION · JFK64-6 : F9A : 1998.02.02.18:36:38:966031 : · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER - TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper - Textual DocumentRelease 2023

CIA|October 25, 1974|PAPER - TEXTUAL DOCUMENT|NAID 104-10167-10239

SourceCIATextMetadata onlyRecordNAID 104-10167-10239

CABLE RE MARCOS DIAZ LANZ.

CIA · From: DIR · To: FEDERAL BUREAU OF INVESTIGATION · JFK64-6 : F9A : 1998.02.02.18:35:07:966031 : · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER - TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper - Textual DocumentRelease 2023

CIA|October 22, 1974|PAPER - TEXTUAL DOCUMENT|NAID 104-10167-10241

SourceCIATextMetadata onlyRecordNAID 104-10167-10241

CABLE RE LETTER FROM MARCOS DIAZ LANZ.

CIA · From: DIRECTOR · To: WITHHELD · JFK64-6 : F9A : 20040301-1052141 : · Release: In Part

Matched by

Title, metadata, or description text

Record type

CIA / PAPER - TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper - Textual DocumentRelease 2017-2018

CIA|April 1, 1960|PAPER - TEXTUAL DOCUMENT|NAID 104-10167-10245

SourceCIATextMetadata onlyRecordNAID 104-10167-10245

MARCOS DIAZ LANZ.

CIA · From: WITHHELD · To: MEMO FOR THE RECORD · JFK64-6 : F9B : 1998.02.02.18:50:27:293031 : · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER - TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper - Textual DocumentRelease 2022

CIA|April 1, 1960|PAPER - TEXTUAL DOCUMENT|NAID 104-10167-10246

SourceCIATextMetadata onlyRecordNAID 104-10167-10246

REPORT OF CONTACT WITH MARCOS DIAZ LANZ.

CIA · From: WITHHELD · JFK64-6 : F9B : 1998.02.02.18:52:08:200031 : · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER - TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper - Textual DocumentRelease 2022

CIA|March 12, 1960|PAPER - TEXTUAL DOCUMENT|NAID 104-10167-10247

SourceCIATextMetadata onlyRecordNAID 104-10167-10247

CABLE RE MARCOS DIAZ LANZ.

CIA · From: WITHHELD · To: DIRECTOR · JFK64-6 : F9B : 1998.02.02.18:53:41:856031 : CORRECTED TO 1 PAGE VICE 2. · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER - TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper - Textual DocumentRelease 2022

CIA|July 28, 1959|PAPER - TEXTUAL DOCUMENT|NAID 104-10167-10139

SourceCIATextMetadata onlyRecordNAID 104-10167-10139

MARCOS DIAZ LANZ.

CIA · From: CI/OPS/WH · To: MRS. JAN ROMAN · JFK64-6 : F10 : 1998.01.29.18:17:39:840102 : · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER - TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper - Textual DocumentRelease 2022

CIA|July 25, 1959|PAPER-TEXTUAL DOCUMENT|NAID 104-10167-10149

SourceCIATextMetadata onlyRecordNAID 104-10167-10149

CABLE RE EVACUATION OF MARCOS DIAZ LANZ.

CIA · From: HAVANA · To: DIRECTOR · JFK64-6 : F10 : 1998.01.31.12:02:59:140031 : · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER-TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper-textual DocumentRelease 2017-2018

CIA|July 23, 1959|PAPER - TEXTUAL DOCUMENT|NAID 104-10167-10151

SourceCIATextMetadata onlyRecordNAID 104-10167-10151

CABLE:ASSISTANCE IN EVACUATION OF MARCOS DIAZ LANZ.

CIA · From: DIRECTOR · To: WITHHELD · JFK64-6 : F10 : 1998.01.31.12:06:57:263031 : DUP OF 104-10113-10377 · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER - TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper - Textual DocumentRelease 2022

CIA|July 23, 1959|PAPER-TEXTUAL DOCUMENT|NAID 104-10167-10152

SourceCIATextMetadata onlyRecordNAID 104-10167-10152

CABLE RE EVACUATION OF MARCOS DIAZ LANZ.

CIA · From: WITHHELD · To: DIRECTOR · JFK64-6 : F10 : 1998.01.31.12:08:12:153031 : · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER-TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper-textual DocumentRelease 2017-2018

CIA|July 8, 1959|PAPER-TEXTUAL DOCUMENT|NAID 104-10167-10162

SourceCIATextMetadata onlyRecordNAID 104-10167-10162

CABLE RE MARCOS DIAZ LANZ.

CIA · From: DIRECTOR · To: HAVANA · JFK64-6 : F10 : 20040301-1052132 : · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER-TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper-textual DocumentRelease 2017-2018

CIA|PAPER - TEXTUAL DOCUMENT|NAID 104-10167-10148

SourceCIATextMetadata onlyRecordNAID 104-10167-10148

MARCOS DIAZ LANZ.

CIA · From: DIRECTOR OF SECURITY · To: CHIEF, WESTERN HEMISPHERE DIVISION · JFK64-6 : F10 : 1998.01.31.12:00:18:250031 : · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER - TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper - Textual DocumentRelease 2021

CIA|PAPER - TEXTUAL DOCUMENT|NAID 104-10167-10153

SourceCIATextMetadata onlyRecordNAID 104-10167-10153

CABLE RE EVACUATION OF MARCOS DIAZ LANZ.

CIA · From: DIRECTOR · To: PANAMA CITY · JFK64-6 : F10 : 1998.01.31.12:11:18:653031 : · Release: Redact

Matched by

Title, metadata, or description text

Record type

CIA / PAPER - TEXTUAL DOCUMENT

Confidence

Entity name appears in the title

High confidenceCurated metadataCIAPaper - Textual DocumentRelease 2021