Eaton became employed at the
Cutler School of New York in 1888 as a member of the English faculty, later becoming head of the school's English department. His first notable work was published the same year, titled
The Heart of the Creeds: Historical Religion in the Light of Modern Thought. His first book of poetry was published a year later in 1889, titled
Acadian Legends and Lyrics. The book was quite well-received. Eaton's third book,
The Church of England in Nova Scotia and the Tory Clergy of the Revolution, was published in 1891. In 1904, Eaton received a
Bachelor of Arts degree
ad eundem from
Dalhousie University. He received a
Master of Arts from Dalhousie by thesis the same year. Eaton retired as head of the Cutler School's English faculty in 1907 and settled in Boston, where he continued researching and writing about the history of Nova Scotia. Published in 1910,
The History of Kings County, Nova Scotia is regarded as Eaton's
magnum opus. At 900 pages long, the book was Eaton's most significant historical work. Eaton was elected as a
Fellow of the Royal Society of Canada in 1913. Members of the Royal Society were required to live in Canada, so Eaton returned to Nova Scotia and briefly settled in
Truro. Here, he began compiling a history of
Colchester County. Eaton resigned from the Royal Society of Canada after the society refused to publish the paper he presented at their annual meeting in May 1914. ==Later life and death==