In his early poetry, Robert Lowell expresses his dissatisfaction with the conflicts among family members, particularly those who belong to his maternal family, including his own mother. This paper examines the origin of Lowell`s friction with his family, the process of forgiveness, and reconciliation with his family members under conflicts. Like his mother, Charlotte Winslow, Lowell was born into the Boston Brahman family, American version of aristocracy, who are still very proud of their contribution to foundation of America. Nevertheless, Lowell himself abominated their choice of materialistic crusade, a manifestation of snobbery, instead of championing their faith. It was in the very respect that Lowell attacked his forefathers. Particularly, "91 Revere Street" in Life Studies is an epitome of his bitterness toward his own parents and his maternal grandfather. It looks unlikely that Lowell will make a reconciliation with those family members. But as Life Studies progresses, Lowell starts to communicate with his family members one by one, thereby breeding accommodation and forgiveness which lead to sympathy and love in the long run. Such a progress demonstrates extension of Lowell`s self, which keeps developing to the degree that he accepts the people outside his own family members as his. For example, "In Waking in the Blue," Lowell describes the two graduates of Harvard University who suffers from mental illness; finding their abnormal behaviors close to his own, he accommodates them as his family members.