Anna was the daughter of Caroline Dixwell Clements [1856-1931] and George Henry Clements, and a descendant of Epes Sargent, sitter for a portrait by John Singleton Copley in the NGA (1959.4.1). Anna married Oswald Whitman Knauth and Arnold Whitman Knauth II.
Sargent, Emma Worcester and Charles Sprague Sargent. Epes Sargent of Gloucester and his Descendants. Boston and New York, 1923: 15.