She helped her sister-in-law, Kazuko OTANI, the wife of then head abbot, Kozui OTANI, found the Buddhist Women's Association (BWA, Fujinkai in Japanese) and when Kazuko OTANI died young at the age of 30 in 1911, Takeko became general manager, taking on the solemn responsibilities of operating the Association.
義姉・大谷籌子裏方（大谷光瑞夫人）を助けて仏教婦人会を創設し、1911年（明治44年）､大谷籌子が30歳の若さで早世の際は本部長に就任、同会運営の重責を果たした。