This is a Chinese name; the family name is Yu.
Yu Jishi (traditional Chinese: 俞濟時; simplified Chinese: 俞济时; pinyin: Yú Jìshí; 1 May 1904 – 25 January 1990) was a Chinese Nationalist military general from Fenghua, Zhejiang. He served with distinction during the Battle of Shanghai and was wounded leading a defense in battle. After the war, he retreated to Taiwan along with the Nationalist government and served with the defence ministry.
The original article can be found at Yu Jishi and the edit history here.