Book  (Apr 1993)  Page(s) 160.  
 
Emmie Koster Polyantha, deep red [dr], 1956, 'Dick Koster' sport; Koster, D.A.

Book  (1958)  Page(s) 102.  
 
Emmie Koster. Pol. (D. A. Koster, '56.) Deep red sport of Dick Koster. (14)