Millicent Monks is the great-granddaughter of Thomas Carnegie (Andrew's brother and business partner), Ms. Monks's memoir Songs of Three Islands: A Memoir of Motherhood and Mental Illness in an Iconic American Family, unflinchingly relates the multi-generational impact of her great-grandmother's, mother's, daughter's and granddaughters' mental illnesses, eager to help to others coping with mental illness, especially mothers. Her "islands", both physical and metaphorical, stretch from the early, matriarchal Carnegie estate on Georgia's Cumberland Island, through Ms. Monks' adult life on an island in Maine, to her guiding spiritual metaphor and final destination, a patriarchal island far to the North.