John,I found this online-The Island of Mount Desert register with the Cranberry Isles, 1909-1910.They did a census for Eden in 1909.They listed children even if they didn't live with them (they were considered non-residents but listed them because the parent still lived in the town).They also listed the wife's maiden name in parentheses.You can read it online the information is on page 132.
John P. Dunton Lewis (non-resident) Delia-(non-resident) Hattie A.-(non-resident) John-(non-resident) Clara E. (Hurd)
There is a Walter H. Dunton listed below him with wife Adelma C. (Brown)
1880 census for Stetson, Penobscot, Maine Plummer Dunton-age 33-born ME Amanda Dunton-wife-age 26-born ME Gladys L. Dunton-daughter-age 10-born ME Georgia H. Dunton-daughter-age 8-born ME Adelia M. Dunton-daughter-age 6-born ME Lewis B. Dunton-son-age 4-born ME Hattie A. Dunton-daughter-age 2-born ME John P. Dunton-son-age 0-born ME
Amanda C. Dunton is buried at Lakeview Cemetery, Penobscot County, ME.Death date is May 18, 1882-Inscription on stone is aged 28 yrs:Wife of John P. Dunton.
Plummer is on 1850 census with Jason and Rebecka Dunton.
You can find this at familysearch.org
Maine Marriages, 1771-1907 Plummer Dunton Amanda Stanley Penobscot, Maine May 7, 1870
Walter H. Dunton Dellie C. Brown Bar Harbor, Hancock, Maine July 7, 1879
Arthur C. Lufkin Glydis C. Dunton-Father's name Plumber Dunton Marriage Date-Sept. 25, 1890
Arthur N. Jones Harriet A. Dunton-parents are John P. Dunton and Amanda Stanley Marriage Date-March 23, 1912 Registration Place-Springfield, Massachsetts Event Place-Enfield, Connecticut