Other than the Dongs in the East, there was also the Dongs in the West (Xidong) in the Dongguan Village in the northwestern Tengchong City. It was founded by Dong Rurang, whose polite name was Yisan, the 13th descendant of the Dongs of the Dongguan Village. According to the local chronicle, their ancestor Dong Jiu followed Mo Ying to conquer Tengchong and got military merit. Dong Jiu was appointed General Wuxin to guard Tengchong and his later generations have ever since dwelled in the Dongguan Village. He was born in around 1843, the 23rd year of Daoguang Period in the Qing Dynasty and the date of his death remained unknown. His father, Dong Dachun, whose polite name was Xiaoting, was a teacher. At that time, the general of Tengchong knew that Dong Rurang was a wise man, so he financed him to set up Fuchunheng in places like Tengchong, Myanmar, Baoshan, Huicheng and let him take full responsibility of the stores. Dong was quite perceptive and his business soon flourished and became Yixi( a route that business went. Here it refers to going from Dali to Baoshan and Tengchong, then crossing the border to Myanmar and India. This route is the well-known Yongchang road of “the South Silk Route”). It was Dong who brought the flourishing of Xidong, the center of business. Dong Rurang, the eldest son of the Dong family, married a girl from the Yin family of Qiluo and gave birth to Youlian(Aiting), Youqin(Caiting), Youju(Yuanting), Youxun(Nanxuan). When Dong was operating Fuhengchun, he often went back and forth between the west Yunnan and Myanmar to do trade of cotton and yellow silk. It went well and he gained much profit. According to what Yang Bizhuan wrote, after Dong became wealthy, he reached out for a number of people. Dong Youfang of the same village, who used to sell and transport cloth alone between Tengchong City and Myanmar because his family was poor, later turned to Dong, who accepted him and let him work with his sons Aiting and Caiting to co-found Chunyuanji, which later had other subsidiaries in Baoshan, Kunming, Mandalay and Rangoon in Myanmar. Later, Zhang Wenxing asked Dong Youfang to collect customs duties on his behalf. The latter managed to open up commercial roads and goods were transported smoothly. Gradually, Zhang shook off poverty. Another townsman Dong Youhuai, who was raised by his mother after his father’s death, came from a poor family. Later, with the help of Dong Rurang, he apprenticed in Dong’s business for a few years and started to do business on his own. He eventually got rid of poverty as well. After Dong Rurang brought the flourishing of Xidong, his sons inherited the family business and their contribution made it more prosperous than ever. In 1928, Chunyuanji and Maoyanji were merged into Maoheng. The main shareholders were Dong Youlian, Dong Youqin, Jin Xiyi and Wang Shaoyan. The chairman was Wang Shaoyan, and Dong Youlian, and Dong Youqin were consultants. Maoheng was based in Tengchong and was run by Jin Xiyi and Dong Youlian. Dong Youju, working in Mandalay, Myanmar, was fully responsible for the business in Myanmar.

　　The fame of Dong Rurang not only came from his thriving business and wealth but also his contribution to his hometown. He invested a lot in temples and schools, helping the poor and doing public welfare. His sons also followed suit. Dong Youlian remained thrifty all his life but was very generous in doing public welfare. He cooperated with his brothers to build Longjiang and Lujiang cable bridges. He donated a plane during the War of Resistance against Japanese Aggression (1937-1945). And during the fall of Tengchong city, Dong Nanxuan sent tens of thousands of kilograms of rice, more than 100 packs of salt, thousands of pieces of cloths, and more than one million silver dollars to help the refugees. During the recovering of Tengchong city, he donated again thousands of kilograms of pork and thousands of towels to the guarding troops. After Tengchong was recovered, he wrote to shareholders of Maoheng to make a donation of 60 million silver dollars to help the wounded and the sick, build a national memorial cemetery, restore Tengyue middle school, county library, and rural primary schools. All these philanthropic acts were closely related to the examples set by his father.

　　When Dong Rurang passed away, Cun Kaitai, a scholar in Tengchong, composed his epitaph which goes: Born in a chaotic world, he gave up Confucianism and engaged himself in business. He was especially appreciated by Jiang Zhuangqin, who helped to spread his reputation all over the east south. When Jiang passed away, he ordered to establish a specific temple to enshrine Jiang and spent a large sum of money in troop to return his favor. " Dong Rurang was generous in giving. He donated a lot to build schools and buy farm fields for his townspeople.

　　The epitaph reads: "“Beside the West Hill lies a spot full of cosmic energy, a lush place where Dong rests in peace. Envied even by great sages, the site stands as a memorial to his impeccable morality and great legacy. His descendants are endowed with filial piety and intellectual brilliance. His deeds are blessed by gods to be passed down for eternity as a paradigm for all to draw inspirations from. In loving memory of him, this monument will stand till the end of the world.”