T'u-men

Article V.—In consideration of the numerous difficulties arising from the authority exercised by local officials over the legal traffic at such places on the boundary as I-chou, Hui-ning, and Ch’ing-yuan, it has now been decided that the people on the frontier shall be free to go to and fro and trade as they please at Ts’e-men and I-chou on the two sides of the Ya-lu River, and at Hun-ch’un and Hui-ning on the two sides of the T’u-men River.

We may also expect to hear that a Corean Consulate is to be established at Vladivostok; the opening of the Tʻu-mên river will, no doubt, be secured and telegraphic communication established with Vladivostok and such other places as may be necessary.[…]The Tʻu-mên river flows close to the borders of Manchuria and its opening will probably increase the serviceableness of Possiet, which is near its mouth.

Hui-ning and Hoi Ryöng (42° 22' N and 129° 43' E) was a city on the T'u-men River, which the Chinese in Ninguta used as their main market for trade with the Koreans (LPCL 3, 4b).

In the 1380s the tribe moved southward and came to the lower valley of the T’u-men 圖們 River and finally settled down around Wo-mu-ho 斡木河, the present Hoeryong 會寧, in north Korea.

On October 1, 1950, she reported, the United States crossed the 38th parallel and pressed toward the Yalu and T'u-men rivers, both within China's borders, and from there launched further attacks.