This article describes the development of a new mutual support group intervention for long-term care homes (LTCH); evaluates the processes, structure, and content of the intervention; and addresses replication and sustainability. Tom Kitwood’s model of personhood is used as the basis for developing a weekly discussion group using themes chosen by participants and theme-associated music, readings, and photographs. A mixed-methods qualitative process evaluation design encompasses focus groups, systematic observation of six resident groups, individual resident interviews (N = 65), and staff interviews (N = 7) in three LTCH in British Columbia, Canada. Resident reports and observations indicate positive benefits including a decrease in loneliness, the development of friendships, and increased coping skills, understanding, and support. Participating staff reported numerous benefits and described how the unique group structure fosters active participation of residents with moderate-severe cognitive impairment. This preliminary study suggests that mutual support groups have potential to offset loneliness, helplessness, and depression within LTCH.