When Li You-pang was studying at the Taipei Teacher Training College, he joined the Taiwan Culture Association. Thus the steps of the highest, rearmost courtyard of the Li Family Compound became a patriotic speaking platform for the association's leading figures Jiang Weishui and Lai He, and the Japanese police stood outside the courtyard gate monitoring their every word and action.
李友邦就讀台北師範學院時，加入由蔣渭水主導的「台灣文化協會」，因而李宅最高的後院台階，就成為當時當時深具國家意識的蔣渭水、賴和的民族演講台，而日本警察就站在門廳外監視他們的一言一行。