*[https://www.nytimes.com/1950/06/09/archives/senators-may-call-clark-on-amerasia-justice-has-nothing-to-say-on.html SENATORS MAY CALL CLARK ON AMERASIA; Justice 'Has Nothing to Say' on Case--Vardaman Repeats at Inquiry Denial of Link Action Forced by Truman] via ''The New York Times'', published June 9, 1950