How did Dai come from?

According to the Preface to the Compilation of the First Volume of Dai's Genealogy, "Dai was originally from the Yuan Dynasty to the eighteenth year (Dai Yubao's note: A.D. 1358), and my teacher moved to Daijia Laoying, the fourth family in the old temple collection in South Shoushou, commonly known as Sijia generation. From the Yuan Dynasty to the 40th century, it moved from Laostork Lane in Yanzhou, Shandong Province to Waba, Jiangxi Province (as explained in the preface to the second revision of Dai's Genealogy). According to "When migrating in the early Ming Dynasty (Dai Yubao's note: the first year of Hongwu, Emperor Zhu Yuanzhang of the Ming Dynasty, AD 1368), the government set up a dam on the Waba, and all counties in Raozhou migrated along it. Go upstream and reach counties in Hubei. " "According to Ming History, Records of Ming Taizu, a large number of genealogical records and research by experts in Chinese immigration history, during the Hongwu period, there were more than 2 10/000000 immigrants from Jiangxi to Hubei, Anhui, Hunan and Jiangsu", and it was introduced that the southern Red Scarf Army uprising area was mainly concentrated in Jianghuai area at the end of Yuan Dynasty. In recent ten years, farmers from all over the world have moved to Anhui, Hubei, Hunan and Jiangsu, so these areas are as barren as the Central Plains. Thousands of miles are barren. Therefore, in the early Ming dynasty, immigrants from the above areas were preferred. According to the genealogical data collected by the author, the immigrants from Anhui, Hubei, Jiangsu and Hunan in the early Ming Dynasty were mainly distributed in Anhui: Fengyang Hefei Feidong Feixi Changfeng Tongcheng Buried Hill Susong Taihu Anqing Huaining Zongyang Chizhou Guichi Qingyang Lu 'an Shouxian Xiuning yi county to Wangjiang Chaohu Chuzhou] ",and they gathered in Nanlao Temple in Shouxian County to wear their old wives, which has been passed down for twenty-four or five generations.