AMW's sister, she was the daughter of Martha Kingsley and Dr Daniel McNeill. She married Dr George E. Palmer on 23 March 1840 in New York City. They had four children: Julia McNeill (1851-1902); George Erwin (1843-1909); Donald McNeill (b. 1845); and Anna Whistler (b. 1848) (AMW's godchild).
She lived in the 'Old Corner House,' on the corner of Main and Wall Streets, Stonington, CT.
McDiarmid, Kate R., Whistler's Mother: Her Life, Letters and Journal, [n.p.], [n.d.]; Pennell, Elizabeth Robins, and Joseph Pennell, The Life of James McNeill Whistler, 2 vols, London and Philadelphia, 1908; Mumford, Elizabeth, Whistler's Mother: the Life of Anna McNeill Whistler, Boston, (Mass.), 1939.