“… from 1951 to 1970. There is some chronologi cal variance in the 3/5/70 letter. NW 65994 Docld:32989616 Page 4 3 - 1 净 5-140 (Rev. 1-21-74) FEDERAL BUREAU OF INVESTIGATION WASHINGTON, D. C. 20535 Addressee: LTR Senate Select Committee Memo 7/10/75 LHM Report dated U.S. Senate Select Committee Re: Huston Captio …”