Xu Xiake's fourth son, four wives and four concubines are the eighteenth generation of Xu. The names of the three sons are Tiao, Fan and Ga, all of which are related to "mountains", expressing Xu Xiake's interest in "making scenery". These three sons have been published in the genealogy, and one son is surnamed Li, but this son failed to enter the genealogy and was not recognized by the Xu clan. Why did Xu Xiake's fourth son have two surnames, Xu and Li, and why was it not included in the genealogy table of Xu's Genealogy? These problems reflect that Xu Xiake had a tragedy in marriage and family. Zhou, her mother, was originally a cricket girl of the Xu family, and later became pregnant with Xu Xiake. Xu Xiake's mother, Roche, was afraid that Zhou's position would be shaken after giving birth to a child, so she used Xu Xiake's trip as an excuse that Zhou was pregnant during Xu Xiake's funeral in Xushi (referring to Xu Xiake's mother), which violated the etiquette and forced Zhou to marry a man named Li in Dingshan, Jiangyin, in the name of "marrying her aunt's daughter". Zhou was fired and gave birth to a son in the Li family. His surname was the same as Xu and Li in Ming and Qing Dynasties. As for the time when Xu's marriage tragedy happened, that is, the time when Zhou was exiled because of "not being with his mother" and the age of his life, there is no exact statement. According to the genealogy Biography of Gao Shi Jia Jie, Zhicheng Deng thinks that Li Jisheng died in the year of Xu Xiake, that is,1641; Ding Wenjiang Xu Xiake's Chronicle 1628 pushes Li Jisheng; Zhou Ningxia, Li and Xu Xiake's Travels, according to the poems written by Li on New Year's Eve in the 15th year of Shunzhi (at this time, it was 1659), the sentence "I'm sorry for forty years, but everything is not a poem", and the self-annotation "So it was in December", it is concluded that Zhou was expelled and the year was16/kloc.

Xu Xiake's eldest son, Xu Di (16 15- 1645), was born to Xu Xiake's original wife, Xu. In the year when Xu Xiake married Xu Shi, Ding Wenjiang presumed that it was 1607 after Xu Xiake lost his father's clothes. This year, Xu Xiake was twenty and twenty-two, which was the year when Xu Xiake started swimming.

Xu Shisheng failed the exam in, and the year of death was based on Xu Yi's "three-year-old mother's death"; According to the records, it was in 16 17, which coincided with the tenth anniversary of marriage, and the cause of death was unknown. Xu is a scholarly family in Jiangyin, and his relative Xu is a famous local scholar and poet. He has a poem called "Sleeping in Xu Zhenzhai on a Rainy Night", in which there are sentences such as "Acacia becomes rich, meet for a rainy day". It can be seen that Xu and Xu Xiake are bosom friends. When Xu Xiake started swimming, he swam Taihu Lake and Huishan together. He lost his mother at the age of three and was raised by his grandmother Wang, who was his favorite grandson. Under the education and influence of classmates Ji Huiming, Xu and Liang Gong, he studied Kang Sheng for Jiangyin County.

1640, Xu Xiake traveled to the west and learned that his best friend Huang Daozhou was imprisoned in Beijing, and sent Xu Yi to visit Beijing with warm clothes, letters and a notebook. In the second year of Shunzhi (1546), the Qing army went south. Under the leadership of Yan Yingyuan and Chen Mingyu, Jiangyin people fought bravely for 8 1 day to resist the haircut order of the Qing Dynasty. In the fierce anti-Qing, the slaves in Jiangyin took the opportunity to unite and held an armed riot against their masters (that is, "slavery"). On the night of Mid-Autumn Festival, the Xu family slaves also rioted. The Xu family homestead was burned, property was robbed, fields were divided, and travel notes were also burned. And his cousin Chong were killed by Jinshi Xu Lianggong and other men, women and children. The fugitives were forced to wander around, and the Xu family ceased to exist. Xu Yi was only 30 years old when he died, and his wife Shi Miao was Miao Changqi's granddaughter. He has two sons, Kenji and Uncle Kenji, and two daughters.

Li (1628~ 1700) is the third son of Xu Xiake. His mother Zhou was Xu Xiake's concubine. Because she was pregnant with her wife, she was not allowed to go into exile, so she remarried Li, so she was named Ji. Because of her two surnames, she lived in two dynasties, so she used the word "". Among Xu Xiake's four sons, Li Jicai is the most learned and fatherly, and his appearance and temperament are very similar to that of Shack. He took part in the boy's test and was awarded the first place by the magistrate. Soon, I regretted the idea of becoming famous and stopped taking college exams. He lived in seclusion in the countryside, was not rich and heartless, did not give gifts, served his mother alone, never married, and finally died of poverty and illness. In his early years, he wanted to recognize his ancestors and was refused. After becoming famous, Sha, a famous celebrity in Jiangyin, wrote a book "Persuade a friend to take a new surname", urging him to take a new surname, but he refused. Xu Xiake had a daughter who married Zhou Yifu of Jiangyin, but her husband died young and didn't remarry. He always asked his son Zhou Gongmao to hold ceremonies for Li Ji. Li Ji's works are rich, but most of them are lost. Some poems and essays he wrote about Tianxiangge have been handed down from generation to generation. Li Ji has deep feelings for his father Xu Xiake and regrets the loss of Xu Xiake's Travels. He tried to collect it everywhere. In the 23rd year of Kangxi (1684), Cao's copy was obtained from Shi Xia Long in Yixing, but it was different from Shan. Li Cong reflected the original version of Cao in the Japanese film, and checked it with the Quarterly Draft, corrected its mistakes, and supplemented the contents that were not in the Quarterly Draft such as You Tai Hua Shan Ji, You Ji and Pan Jiang Kao. This edition is considered to be the ancestor of the later editions, but it was not seen by Chen Hong during the Qianlong period.

Xu Jianji (1634~ 1693), whose real name is Wu Zhi, is the son of Xu Di, the eldest son of Xu Xiake, and one of his two favorite grandsons. When Xu Xiake returned from his journey to the West, he told Xu Jianji and Xu Jianshu all kinds of adventures before he died, and played with them the marble, strange trees and roots brought back from Yunnan. And warned them: "Men should strive for fame and fortune, make achievements thousands of miles away, take the title of king's neck, carve the stone of Ran Yan and return to their ears, and take this place for granted." When Xu Jianji was born, Xu Xiake received letters from five good friends, including Wen, Chen and Huang Daozhou, and was very happy. He said, "My son will be able to make my family great." Xu Xiake is worried about the successor of Tang Tai, a good friend in Jizushan, and his expectations for his children and grandchildren can be imagined. Xu Xiake believes that men should have lofty aspirations and make contributions to Wan Li. It can be seen that he does not advocate passive inaction like a hermit, but he is not pursuing secular fame. According to Fan Zhongyan's Biography, Xu Jianji was "the following year of litigation". A superintendent named Liu Jiangnan, Liu Boxue, was curious. He once saw Xu Xiake's Biography in Qian's Elementary School Collection, and he was very envious. After Xu Jianji visited his descendants to make a travel note, he copied a copy and submitted it. According to Mr. Wu Qiulong's textual research, the "lawsuit" was a "selling disaster" in the eighteenth year of Shunzhi (166 1), and Xu Jianji was implicated, which delayed his reputation. Judging from this, Xu Jianji should have copied it in the first year of Kangxi (1662). From March 27th in the 11th year of Chongzhen (1638) to September 14th in the 12th year of Chongzhen (1639), it was written by Jiang Shang Xu Hongzu Shake and recorded by Sun Jianji. No volume, no crash. The style is consistent with that of the edition (2).