Susanna Adams Winn
From Winn Wiki
“Aunt Susanna” is Susanna Adams Winn, born in 1852, is the unmarried matriarch of the Winn family, who is the sister of Nina and George’s father. She resides at the Winn family homestead at 57 Summer St. Susanna, an 1869 graduate of Cotting High School (as Arlington High School was previously named), worked as an artist and managed her inherited money. She spends most of the winter with her close friends, the Touts, in Winchendon, Massachusetts.