Twin Oaks, a symbol of Sino-American relations, has been the residence of nine Chinese ambassadors since 1937: Wang Cheng-t'ing, Hu Shih, Wei Tao-ming, Ku Wei-chun, Tung Hsien-kuang, Yeh Kung-ch'ao, Chiang T'ing-fu, Chou Shu-k'ai and James C. H. Shen.
雙橡園一向被視為中美關係的象徵，從一九三七年起，這裡曾先後做為中華民國九任駐美大使﹘﹘王正廷、胡適、魏道明、顧維鈞、董顯光、葉公超、蔣廷黻、周書楷、沈劍虹的官邸。