ADDIE MURIEL DEARBORN was born in Sherman Mills, Maine 13 Dec 1923, eighth child of HERMAN REYNOLDS and EMILY MEHITABLE (DAVIS) DEARBORN of Sherman Mills. Addie was living at Old Orchard Beach, Maine when she died 18 June 2001, according to the Social Security Death Index. There was an obituary for her in the Biddeford Journal Tribune for 21 June 2001, which I haven't seen.
Addie married at Winthrop, Mass. 21 Nov 1942, MAURICE W. MOONEY, born at Groveland, Mass. 11 Sept 1921; died at Houlton, Maine 17 Oct 1984, age 63 (obit, Bangor Daily News, Thurs, 18 Oct 1984, p. 27). Maurice served in World War II, grew up in Littleton, NH, and later lived in Merrill, Maine. Apparently he and Addie were divorced, and he married (2) Eugenia Russell, who was his wife at the time of his death, according to his obit. This lists five children (as of 1984): Karen Dussault and Colleen Koerner both of Biddeford, Joel Hamm of Augusta, Lionel Hamm of Oakfield, Maine, and Danielle Burby of Masardis, Maine. These names don't match the ones you list at all . . . I wonder if the five children listed in Maurice's obit are actually children of his second wife . . . ?
The names of Addie's siblings that you list are correct, and I have some info on them, too. Most of them ended up in Massachusetts, Connecticut or further south.
There are a lot of Dearborns in Corinna, including my own branch, but I'm not aware that any of this particular family (Herman R. Dearborn's) ever lived there. Herman was born in Sherman in 1872, lived there most of his life, and died in Gorham, Maine in 1948, but is buried in the Cemetery No. 2 in Sherman, along with his wife Emily, who died while living with her daughter Glenice in Fayetteville, North Carolina in 1972.