Mr. MAMANTOV. Right, Fredricksen and his wife, he and my wife, my mother-in-law and myself violently jumped into the conversation, and I said, "Folks, you just don't know with whom you are associating. You shouldn't be at that party, and you shouldn't be going into those houses," and, of course, they said, "We just wanted to speak Russian. Mrs. Paine wanted to learn Russian, so we wanted to learn Russian and we just decided to get together and learn Russian." And they didn't speak Russian very much except with Marina. She was very shy and didn't talk very much. Most of the evening was spent conversing with Oswald on political questions, because he understood. Mr. JENNER. This was the report they made to you? Mr. MAMANTOV. That's correct. Mr. JENNER. In the questioning by the Federal Bureau of Investigation, you mentioned either a Mr. Clark or a Mrs. Clark. Mr. MAMANTOV. Yes, those people from Fort Worth. Mr. JENNER. What are their names--do you remember a given name? Mr. MAMANTOV. No, I don't remember, but he is a lawyer and his wife, she is a Russian from France. He married her, I think, during the American occupation of Europe. Mr. JENNER. By the way, Mr. Gregory is a native-born Russian? Mr. MAMANTOV. Yes, he is Grigor'er. He has changed his name--it isn't his original name. Mr. JENNER. Originally, it was Gregoria and he changed it to Gregory, spelled G-r-i-g-o-r'e-r [spelling]? Mr. MAMANTOV. It could be--he spelled it also with an "e", but that's originally his name. Mr. JENNER. He is a petroleum consultant of some type? Mr. MAMANTOV. Petroleum engineer--correct. Mr. JENNER. Is he part Russian--part of the Russian emigre group here in the Dallas-Fort Worth area? Mr. MAMANTOV. That's right. You see, we are not meeting with them for quite a while as a group. We broke away, but individually, I have been with Gregorys on a few occasions--I have been with the Clarks on few occasions together. I have been with Mr. Bouhe quite frequently in the past--whom else--the same I know them very well personally but we didn't meet--we don't meet as a group any more. Mr. JENNER. Mr. Mamantov, do you have anything that occurs to you that you think I would like to add to the record that you think might be helpful to the Presidential investigation of the assassination of President Kennedy, in connection with its work in investigating the assassination of President John F. Kennedy; if so, would you please state what you have in mind?