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Daniel Dearborn was born probably at Hallowell, ME about 1805, son of James (Simon, Edward, Samuel, Thomas, Godfrey) and Clarrisy (Cummings) Dearborn. He married (intention) at Hallowell 22 June 1834, Mary Ann Dudley, who was living in 1883, daughter of Samuel and Sarah (Heath) Dudley.
Daniel and his family lived at Bristol, ME in the 1840 Census; at Gardiner, ME 1850; at Monson, ME 1860; and at Lowell, ME in 1870 and 1880. In Dec 1883 the Overseers of the Poor of Lowell represented that Daniel and his wife Mary A. were of unsound mind and by reason of infirmity and mental incapacity were incompetent to manage their estate or protect their rights. In January 1884 Lorenzo D. Shorey of Lowell was appointed their guardian (Penobscot Co. Probate, 43:406). They apparently died by 1892 when uniform vital records registration was established in Maine.
I have not found birth records for any of their children, but from censuses I have record of nine including the four that you mention.