The book "John Chaplin (1758-1837) of Rowley, Mass. and Bridgton, Me. : his ancestry and decendants [sic] " found at Ancestry.com contained the following from the chapter labelled "Chapter III.Descents of John Chaplin".
viii.George Washington, b. 4 Sep 1823; nicknamed "Creeper George" as a boy because of his short stature and abnormally long arms; lived on the west side of Brandy Pond, below Naples Village.He married 9 June 1854, his cousin, Sarah Emerson (Chaplin) Wight, b. in Naples 29 July 1820, daughter of John and Lydia (Knowles) Chaplin and widow of David Ray Wight.She died in Naples 21 Nov 1890, and he, 26 Feb 1896. Children, born in Naples: 1.Horatio D., died in infancy 2.Ida Anna 3.Emma Lydia 4.Sarah Louise, b. 15 Aug 1861; m. 15 Aug 1882 Oscar Lincoln Cousins, b. 14 Jan 1862; d. 19 May 1919, son of Ebenezer and Jemima (Weeks) Cousins.Sarah Cousins died in Westbrook 3 June 1948. Child (surname Cousins): a. Margaret Miriam, b. 5 Jan 1884 in Fryeburg; m. in Westbrook, Benjamin True Larrabee, b. 10 Oct 1880, son of Alfred Hill and Bernice (True) Larrabee, of New Gloucester. Children (surname Larrabee): (1)Florence Cousins, b. 22 Apr 1911 in Westbrook; m. 1 Feb 1930, William Le Beau, b. 9 July 1907, son of William Le Beau.Children:Robert, b. 29 Jan 1931;Barbara, b. 13 Feb 1945. (2)Benjamin True, Jr., b. 29 Aug 1921, in Portland.
I haven't found anything on your grandmother except for her entries in the Maine Death Archives and Social Security Death Index.