Dear Professor Caldwell,  
  
Gardiner Means's papers are at the Franklin D. Roosevelt Presidential  
Library at Hyde Park, New York.  As for copyright, Means died childless  
and as far as I know placed all of his papers in the FDR Library.  I do  
not know the names or the addresses of any of the relatives.  So my best  
suggestion is that you do not need to get any permission what so ever.  
But it would be nice if you would deposit the letter in the Means Papers  
if it is not there already.  I would also like to see a copy of the  
letter as I have an extensive interest in Gardiner means, being the  
first person to examine his papers.  For more on Means, see the  
following publications:  
  
F. S. Lee, Post Keynesian Price Theory, CUP, 1998  
Warren J. Samuels and F. S. Lee, A Monetary Theory of Employment by  
Gardiner Means, M. E. Sharpe, 1994  
F. S. Lee and Warren Samuels (ed), The Heterodox Economics of Gardiner  
Means:  A Collection, M.E. Sharpe, 1992  
  
And there are other references to Means and publication on Means within  
them.  
  
If you have any further questions about Means, please e-mail me.  
  
Sincerely,  
  
Fred Lee