Lyndon Johnson: “By virtue of the authority vested in me by section 55(a) of the Internal Revenue Code of 1939, as amended (53 Stat. 29…”

“By virtue of the authority vested in me by section 55(a) of the Internal Revenue Code of 1939, as amended (53 Stat. 29, 54 Stat. 1008; 26 U.S.C. (1952 Ed.) 55(a)), and by section 6103(a) of the Internal Revenue Code of 1954, as amended (68A Stat. 753; 26 U.S.C. 6103(a)), it is hereby ordered that any income, excess-profits, estate, or gift tax return for the years 1947 to 1965, inclusive, shall, during the Eighty-ninth Congress, be open to inspection by the Committee on Un-American Activities, House of Representatives, or any duly authorized subcommittee thereof, for the purpose of carrying on those investigations of subversive and un-American activities and propaganda authorized by clause 18 of Rule XI of the Rules of the House of Representatives, agreed to January 4, 1965.”