Growing numbers of adults age with complex marital and family histories. At the same time, aging persons may require family care. This qualitative study focuses on later-life remarried wives (N = 60) caring for husbands with dementia to explore positive and negative care-related support from family and stepfamily members. Telephone interviews included open-ended questions and support networks diagrams to depict support experiences. Caregivers reported receiving support from own family, but noted an absence of support or assistance, or active interference, from stepfamily members. Remarried caregivers face specific support challenges, isolation and demoralization. Opportunities for interventions and future research are discussed.