This study examines whether both parents' relationships with their offspring, parents, and parents-in-law matter for young adults' perceptions of closeness to grandparents. This study focuses on two groups of grandchildren (ages 18-23) in Wave 2 of the National Survey of Families and Households: young adults with married biological parents (N = 442) and those whose biological mother is not married to their biological father (N = 399). Findings suggest that it is important to examine grandparent-grandchild ties within a complete kinship network. Parents' relationships with the grandchild and grandparent generations were associated with the grandparent-grandchild bond. In support of the kinkeeping perspective, mothers' intergenerational ties across lineage lines appeared to be more influential for grandparent-grandchild relationships than fathers'.