The correspondence of Charles Malik with Abba Eban: to reseachers in Washington, DC

I came across this: in Box 15 of the private papers of former Lebanese diplomat, Charles Malik, there is correspondence between him (as a UN diplomat) and Abba Eban.  (I have first encountered a reference to that in the autobiography of Eban).  If somebody is doing work at the Library of Congress, please check it out and let me know.  It could be important.  This man was ostensibly defending the Palestinian rights at the UN.