George S. Ledyard wrote:
O-Sensei had one close female deshi in the thirties when many of the Aikido greats were training (Kunigoshi, Takako). Whereas, Shioda, Shirata, Mochizuki, Tomiki etc. ended up as Aikido teachers and were the Founders of their own styles of Aikido, she ended up as a teacher of flower arrangement, I believe.
Maybe she really like ikebana over aikido? I know an instructor of an ikebana ryu, and it's not something you "end up" as. It takes a lot of work. And how many of the male uchideshi didn't end up as aikido teachers?