J. H. Lents
Richard M. Hopper
Von Richthofen, Walter Baron
Jan Bonsma
Carol Ekarius
Jan C. Bonsma
Sara Rath
William Warfield
Marleen Felius
William Youatt
Lewis Atherton
Harold L. Oppenheimer
Alvin Howard Sanders
Ministry of Agriculture, Fisheries and Food
Sidney L. Spahr
Valerie Porter
Boston (Mass.)
W. J. A. Payne
Peter J. H. Ball
Unknown Author