P, — DN 62-1494 “Dear Comrade: etets "Did your communist friends murder Newton Ho Armstrong, Jr.?" re Roe Both post cards contain the symbol of a triangle | in which is drawn three arrows. Mr. BELL stated that the Postal Inspectors consider . ee that the MENNINGER post cards mentioning the words "Concentras = = = =: tion Camp" are possibly in violation of postal regulations or ih laws. He stated that the Post Office has been unable to oft determine who has been mailing these post cards, which apparently are mailed from different locations in the United States. He stated that approximately 200 post cards have been received by CASADY and MENNINGER. Mr. BELL exhibited a piece of paper which he stated was mailed with a post card to MENNINGER. ‘The sheet of paper was signed by "331" and r bore instructions to mail the card on a specific date. Since 6/15/59, the Denver Office, from time to time, has conducted investigation of the organization known as the "MINUTEMEN." As a result of this investigation, we have — developed a source in this organization name ' OTHER 4 237 Pearl Street, Denver, Colorado, (protect identity). During the past several years, ee ihe is a member of the "MINUTEMEN," has been furnishing this office with information he obtains from this organization. . Photostats of certain material pertaining to the ‘MINUTEMEN" organization was furnished to Mr. BELL; however, the identity of our source was not revealed to him. Another source of the Denver Office regarding this organization had previously been made available to the Alcohol | \- _ and Tobacco Tax wnde ‘of the Tressery: Department. The identity te | —_- AVS ys wi wy? s y Vi SS SE oe ee eS cee So eren ee Se ee Smee fe oe eee ee HW 45880 DocId:32335638 Page 3
DIRE-TOR, FBL (62107261) 2/3/63 AAG, DENVER (6221494) (©) INFORMATION CONCERNING (INTERNAL SECURITY) Re Philadelphia letter to the bureau dated 1/13/63. There are enclosed herewith two (2) post cards furnished 5? JOSEPH C. LEARNED on 1/25/63 by Post Office Inspector LYNN BELL, Denver, Colorado. itr. BELL advised on 1/14/63 that the Post office Inspectors were conducting an investigation to determine who was sending anonymous post <ards to Dr. CARL MENNINGER, "Menninger Concentration Cam," Topeka, Kansas, and also post cards to “Comrade SIMON CASADY, 613 W. Main St., El Cajon, California." The pest card to MENNINGER bears the following : “Food for Red China? “Not till they send hom the 486 Korean jar Veterans that are still held prisoner in communist Chinese slave campe.' The post card to CASADY bears the following: 4 - Bureau (Enc. 2) (8M) 2+ Dallas (R1), Af 1 - Kansas City (62-7797) (infe) (@) + 2f0—— 2 - Philadelphia (157-447) (2) LO So 124 mi (5) “LL INFORMATION CONTAINED to te. HEREIN I$ UNCLASSIFIED DATE_t2u0/22 BY Sp’ HW 45880 DocId:32335638 Page 4
DN 621496 ~ pear Comrade: "D2 your commmist friends murder Newton Avmstrong, Jz. ?* | Both post cards contain the syabel of a triangle in which is Gram three errdws. Mr. BELL stated that the Postal Inspectors consider GSS shes the MENNINGER pest cards mentioning the words “Gencentra- | ma, tion Camp” are possibly in vielation of postal regulations or tee Less « We stated that the Post Gffice has been wmabla to . ier determine who has been mailing these post cards, which ' . eo apparently are mailed from different lecations in the United ee States. He stated that approximately 200 post cards have been received by CASADY and MENNENGER. Mr. BELL exhibited a piece of paper which he stated was mailed with a post card to MENNINGER. ‘fhe sheet of paper was signed by "331" and bore instructions te mail the card on a specific date. Simee 6/15/59, the Denver Office, rom time to time, has conducted investigation of the organization Bnown a6 the "MINUTEMEN." Aa a result of this investigati developed 2 source in this organization named OTHER 4 » 237 Pearl Street, Denver, » @rotect identity). the past several years, Mr. "whe is a menbexr of the “MINUTEMES," has been furnishing t office with information he ebtains from this organization. Photestats of certain material pertaining to the “MINUTEMEN” organization was furnished to Mr. BELL; however, the identity of our source was mot revealed to him. Another source of the Denver Office reperding this organization had previously been mate available to the Alcohol and Tobacco Tax Unit of the Treasury Department. ‘The identity ~* gays 48S HW 45880 DocId:32335638 Page 5