Shigeru's heir (the second son after the change to the family register), Sanji NARAHARA flew about 150 meters in the Narahara second biplane which was designed by him in May, 1911.
繁の継嗣（戸籍変更後は次男）である奈良原三次は、明治44年（1911年）5月、自ら設計し、造った奈良原式二号複葉機で、150mほど飛ぶ。