UFO-Alien Database

Memorandum 6751 is a US document dated 8 July 1947 that was declassified in year 2010,[1] and disclosed to the public from the FBI archives.[2] The memorandum acknowledges the existence of alien presence. Former FBI officer John DeSouza, author of The Extra-Dimensionals: True Tales and Concepts of Alien Visitors points to the memorandum as a significant document in ufology.[3]


Memorandum 6751 remained classified for sixty-three (63) years until Executive Order 13526[1] which allowed for its declassification and release. The memo may not be a “smoking gun”, but it is significant in that it remained untouched from the disinformation campaigns of Project Grudge, Blue Book or Red Book.


Memorandum 6751 discloses the presence of supernormal beings from another world "which interpenetrates with our own and is not perceptible to us.[Line 5] The region from which they come...corresponds to the Lokas or Talas. Students of esoteric matters will understand these terms."[Line 8]


Produced in San Diego, California, July 8, 1947

AMOI 6751, heading

Disclosure of "supernormal" presence, a "public duty".

AMOI 6751, intro

Line 2: "Their mission is peaceful" and their agenda is to "settle" on Earth.

AMOI 6751, Lines 1-2

Line 3: The beings are "human-like but much larger in size".

AMOI 6751, Line 3

Lines 4 to 6: Describes multi-dimensional beings from "an etheric planet which interpenetrates with our own":

AMOI 6751, 4 to 6

Line 7: Weaponized with "radiant energy"; they enter the "etheric" (or cross dimensions) at will.

AMOI 6751, line 7

Line 8 likens their world to Lokas_or_Talas

AMOI 6751, line 8
AMOI 6751, line 9

Conclusion: "Let the newcomers be treated with kindness"

AMOI 6751, conclusion

Addendum: "the front contains the controls; the middle portion is a laboratory; the rear contains armament, which consists essentially of a powerful energy apparatus, perhaps a ray..."

AMOI 6751, addendum

Posted document[]

The following document is posted in the FBI Records Vault, under UFO Part 1 of 16, p. 22.



It’s because of this US document that the pursuit for UFO-alien disclosure cannot be laid to rest. It makes up only one legitimate page for the UFO-alien Bible, if ever one existed. — UFO-Alien Database


  1. 1.0 1.1 Promoting Openness and Accountability by Making Classification a Two-Way Street, by William H. Leary, Special Adviser to the National Security Advisor and Senior Director for Records and Access Management, National Security Staff, 29 December 2009
  2. FBI Records Vault, UFO Part 1 of 16, p. 22, Memorandum 6751
  3. Beyond The Darkness (March 24, 2017), interview with former FBI officer John DeSouza on disclosure of Memorandum 6751 (1:01:50)