1. My version of Budo: The Teachings of the Founder of Aikido. First printing is 1991. My copy is fairly new.
Page 8 starts the chapter, The Life of Morihei Ueshiba. Page 9 devotes two sentences to Ueshiba meeting and training with Takeda. Page 10 and 11 deal mostly with Oomoto kyo and Ueshiba's spiritual development. Then, this part:
Kisshomaru Ueshiba wrote:
This led him little by little to break away from the conventions of Yagyu-ryu and Daito ryu jujutsu, and to develop his own original approach, using applied principles and technique together, to break down the barriers behind mind, spirit, and body. In 1922 this approach was formally named "aiki-bujutsu" but it became known to the general public as Ueshiba-ryu aiki-bujutsu.
No more is mentioned of Daito ryu or Takeda.
However, Ueshiba was issuing Daito ryu certificates until the mid 1930s. In fact, Tomiki didn't start studying with Ueshiba until 1926 and I believe he received a Daito ryu certificate from Ueshiba. Shirata started at the Kobukan in 1933.