Book  (1940)  Page(s) 17, 20.  
 
Page 17: Floyd F. Baum, Knoxville, Tennessee ['Betty Baum']
Page 20: Betty Baum Hybrid Tea. (Baum, 1927)... delicate pink, almost white base yellow.

Book  (1936)  Page(s) 56.  
 
Baum, Betty (HT) Baum 1927; sport of Premier; soft pink to white, base golden-yellow, large, well double, lasting, solitary, fragrance 7/10, floriferous, continuous bloom, long stems, light green foliage, growth 7/10, upright.