She was an editor of the Consolidated Encyclopedia Library in 1901, was a lecturer for the New York Board of Education in 1904-1905, and was on the editorial staff of Hamptons magazine in 1909-1910.

She also authored a "labor play", The Scab, produced in New York and Boston in 1904-1906.

[6][8] In 1914 she published a book of these messages called Letters from a Living Dead Man.

She said that the passages were genuine messages from the dead man and Hatch's son also believed that the communications were from his father.

Around the time of the publication of War Letters from the Living Dead Man in 1915, Barker developed an interest in psychoanalysis.