Agency: FBI
Originator: FBI
From: LEG, MX
To: DIRECTOR, FBI
Document date: 4/10/64
Document type: PAPER, TEXTUAL DOCUMENT

## Page 1

Reteased under

the Joha Fi Kennedy Ascassination Reoords Collection Act-0F 1993 114-U56 2107 Hoteh-

DATE: 11-14-20

IDENTIFICATION FORM

AGENCY INFORMATION

AGENCY: FBI

RECORD_NUMBER: 124-10239-10408

RECORD SERIES: DL

AGENCY FILE_NUMBER: 89-43-3948. 3949

DOCUMENT INFORMATION

ORIGINATOR: FBI

FROM:

TO:

TITLE:

LEG. MX

DIRECTOR. FBI

DATE: 04/10/1964

PAGES:

SUBJECT:

15

SEE FBI 62-109060-2987

DOCUMENT_TYPE:

ORIGINAL

CLASSIFICATION:

PAPER. TEXTUAL DOCUMENT

Unclassified

REVIEW DATE:

STATUS

01/29/1996

Redact

NEW

CLASSIFICATION:

UPDATE DATE:

02/14/2001

RESTRICTIONS:

JFK Act 6 (4)

COMMENTS:

INC MEMO, LHM

DocId: 32184198 . Page

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## Page 2

Released under the John F. Kennedy Assassination Records Collection Act of 1992 (44 USC 2107 Note).

DATE: 11-14-2017

OPTIONAL FORM NO. 10

5010-104-02

UNITED

STATES GOvexNMENT

Memorandum

TO

FROM

DIRECTOR, FBI (62-109060)

DATE:

-

CON- 11

SANITAL

LEGAT, MEXICO CITY (89-6) (RUC)

4/10/64

SUBJECT:

ASSASSINATION OF PRESIDENT

JOHN FITZGERALD KENNEDY,

NOVEMBER 22, 1963, DALLAS, TEXAS

MISCELLANEOUS INFORMATION CONCERNING

3-247041.

by SCATHAlEW

ENCLOSURES:

on: DADR

PURE SASE

Enclosed

are 37 copies of a letterhead memorandum

dated and captioned as above, of which 25 copies are for the

Dallas Office, one copy for the detroit office, and one copy

for the New York Office.

REFERENCES:

Mexico City letter dated 3/11/64, entitled "REVA

FRANK BERNSTEIN

SM - C" (Bufile 100-343413, DE

MC file 100-2363) and "JOSEPH BERNSTEIN,

433, 5, 13e 100-1817,

100-68623, DE file 100-1817, MC file 100-2367); Dallas alrtel

to Bureau dated 3/19/64, with triple caption of Instant case;

"LEE HARVEY' OSWALD,

DL f1le 100-10461); and

IS - R - CUBA" (BufIle 105-82555,

f1le 44-1539);

concerning reporting procedures to be followed;

dated 4/3/64.

pared 4/34, 20, dated /1/84s and Mexic 12 BEAT

ADMINISTRATIVE:

(JEK)

Referenced Bureau cable set forth that additional

Instructions were being submitted to the New York and Detroit

Offices.

The Mexico City Office is not in receipt of these

instructions, and it 1s suggested, If It has not already been

done, that the New York and Detroit Offices be Instructed to (÷)

89-43-3949

SEARCHED

14 - Bureau, (Enes. - 37)

SERIALIZE:

161- GALL45

(1 - New York, Info., Enc. - 1)

1 - Mexico City

FER:esc;eim

(15)

CONFY NTIAL

DocId:32184198 Page 2

DECLASSITIED BYS.GAESLRTGC

ON8/40/9505001

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## Page 3

Released under the John F. Kennedy Assassination Records Collection Act of 1992 (44 USC 2107

Hote). • DATE: 11-14-2017

MC 89-6

In Mexico. Vu)

That cable requested that MEx-18 Jand MeX-19 e pinned ge

These informants were recontacted

down regarding weished the additional details set forth in the

on 4/2/64 and,

REVA PRANK BEANSEE IN MELTE 200-343413, MC that 100-2363) ana

JOSEPH BERNSTEIN (Bufile 100-68623, MC f1le 100-2367) are not

presently/in the Mexico Area, further details are unavailable.

Also, as is pointed out in the enclosure about REVA FRANK

BERNSTEIN, the informants advised that the BERNSTEINS,

as well

aS ELIZABETH CATLETT MORA (Bufile 100-395934, MC f1le 100-939),

are not individuals who will answer direct questions and, when

questioned directly, they are known to terminate the discus-

With regard

to documentation in the enclosure on

WILLIAM CROCKETT,

(Buf1le 100-367743, MC I1le

100-1820) 1s noted that the Mexico City file is incomplete

this and that the bureau has access to proper documentation.

• that MEX-18

SOURCES:

The confidential source mentioned in enclosed Letter

The second source

Is NY-384-S. (K)(U

The third source 15(0514-2551-57)dazess of ELE). LA.

CLASSIFICATION:

(u.)

Mexico furnishing highly sensitive information involving

espionage and information vital to the internal security

the United states. It is essential that the identity of these

UUNEIDENTIAL

DocId: 32184198 Page 3

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## Page 4

Released under the John F. Kennedy Assassination Records Collection Act of 1992 (44 USC 2107 Hote).

DATE: 11-14-2017

OPTIONAL FORM NO. 10

5010-101-03

UNITED STATES GOVCRNMENT

Memorandum

TO

DIRECTOR, FBI (62-109060)

DATE:

4/10/64

FROM

LEGAT, MEXICO CITY (89-6) (RUC)

#ED

SUBJECT:

ASSASSINATION OF PRESIDENT

JOHN FIIZGERALD KENNEDY, 1

NOVEMBER 22, 1963,

DATIAS, TEXAS

MISCELLANEOUS INFORMATION CONCERNING

ENCLOSURES:

Enclosed are 37 copies of a letterhead memorandum

dated and captioned as above, of which 25 copies are for the

Dallas Office, one copy for the Detroit

for the New York Office.

HE REENCE,

SEN THAN

REFERENCES:

724-84

*Mexico City letter dated 3/11/64, entitled

"REVA

FRANK BERNSTEIN,

SM. - C" (Bufile 100-343413, DE [1le 100-1817,

100-56625, 11 20 05 10 3367250(a artel

to Bureau dated 3/19/04, with triple caption of instant case;

"LEE HARVEY OSWALD, aKa,

IS - R - CUBA"

(Buf1le 105-82555,

DL file 100-10461); and

44-1639),

concerning reporting procedures to be followed;

Bureau cable

dated 4/3/641%

dated 4/1/64;Yand Mexico CIty cable #523,

ADMINISTRATIVE:

Referenced Bureau cable set forth that additional

Instructions were being submitted to the New York and Detroit

offices.

The Mexico City Office is not In receipt of these

Instructions, and it is suggested, if It has not already been

done, that the New York, and

14

Bureau (Encs. - 37)

1 - Liaison

Section)

2 - Dallas, 89-43, Encs. - 25)

1 - Detroit, Info., Enc.

1)

(I - New York, Info., Enc. - 1)

1 - Mexico City

FER:esC;eim

(15)

DocId: 32184198 Page 4

655189.43-3949

STARONED

SALLAS

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## Page 5

Released under the John F. Kennedy Assassination Records Collection Act of 1992 444 USC 2107

Hotel. DATE: 11-14-2017

MC 89-6

CUNFIDENTIAL

proceed carerully in any investigation oi this matter

not to comoromise, MEX-10 and MEX-19, Bureau Informants

MEX-28 and and Bureau intorant a peratined

In Nexico.*

That cable requested that MEx-18 Jend MEx-19 be pinned

down regarding specifics. These informants were recontacted

on 4/2/64 and furnished the additional details set forth in the

enclosure.

These iniormants have explained that, inasmuch as

REVA FRANK BERNSTEIN Bufile 100-343413, MC file 100-2363) and

JOSEPH BERNSTEIN (Bufile 100-68623, MC file 100-2367) are not

200-106-3 и 7.1е

presently in the Mexico Area, further details are unavailable.

Also, as is pointed out in the enclosure about REVA FRANK

BERNSTEIN, the informants advised that the BERNSTEINS, as well

as ELIZABETH CATLETT MORA (Bufile 100-395934, MC f1le 100-939),

are not individuals who will answer direct questions and, when

questioned directly, they are known to terminate the discus-

With regard to documentation in the enclosure on

02 note that the next day Tie ne Incomplete

100-1820), it is noted that

on this and that the Bureau has access to proper documentation.

With regard to EVE NIDERMAN, it is

notec

that MEX-18

and MEX-19 had,no Information regarding her.

SOURCES:

The confidential source mentioned in enclosed letter-

were contacted

4/2/64.0

The second source is NY-384-SU

The third source iSXCSNY-2551-sk(Adaress of ELF).

CLASSIFICATION:

The enclosed letterhead memorandum is classified

Mexico furnishing highly sensitive information involvine

espionage and information vital to the internal security of

the United States.

It is essential that the identity of these

CUNFIDENTTA

- 2 -

DocId:32184198 Page 5

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## Page 6

Released under the John F. Kennedy Assassination Records Collection Act of 1992 444 USC 2107

Hotel. &

DATE: 11-14-2017

MC 89-6

CONFIDENTIAL

informants be fully protected, especially since they are the

only source which received the information from ELIZABETH

CATLETT MORA, REVA FRANK BERNSTEIN,, and JOSEPH BERNSTEIN, who

head memorandum with anyone else.

the protection of these informants is of paramount Interest

to the continued operations of the Bureau in Mexico. and for

this reason the letterhead memorandum is classified

COPIES:

Twenty-five copies of the enclosed letterhead memo-

randum are being designated for Dallas, the domestic office

of origin, according to instructions set forth in referenced

Dallas airtel.

Ten copies of the enclosure are being forwarded to

the Bureau inasmuch as referenced Bureau cable instructed that

Into a letterhead memorandum

suitable for dissemination to

President's Commission.

Inasmuch as the Detroit and New York Offices are

being furnished additional Instructions by the Bureau, one

copy of the enclosed letterhead memorandum 1s being furnished

for the information of each of these offices.

и)

CUN IDENTIAL

-3-

DocId: 32184198

Page 6

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