...After Czajkowski arranged for Charles to meet with a "Mr. Green", Czajkowski and Dorothe Matlack were left in the company of the de Mohrenschildts - probably for the purpose of gently finding out from them just how much they learned about Lee Harvey Oswald: Memorandum for the Record by OO/C A. F. Czajkowski, p. 3, 5/10/63, Reel 52, Folder C, George de Mohrenschildt - NARA Record Number: 1994.04.26.09:19:10:570005.
(Note: You can view every article as one long page if you sign up as an Advocate Member, or higher).