| Birth Name: | Marie-Casilda Deveau |
| Birth Date: | 2 February 1935 |
| Birth Place: | Chéticamp, Nova Scotia, Canada |
| Death Place: | Montreal, Quebec, Canada |
| Period: | 2007-2019 |
| Genre: | Historical fiction |
| Notableworks: | Jeanne Dugas of Acadia |
Cassie Deveaux Cohoon (2 February 1935 – 3 September 2019) was a Canadian writer of Acadian descent.[1] The primary focus of her research was Acadian history, and in particular the women of Acadia.
Cohoon self-published her first novel Severine in 2007. The work was a dual narrative describing the life of a fictional woman of Grand-Pré, Nova Scotia who lived through the Acadian Expulsion and a modern-day woman's struggle with her Acadian identity.
She later discovered that she was a direct descendant of Jeanne Dugas and her husband Pierre Bois, who were one of the founding families of Chéticamp, Nova Scotia.[2] She also discovered that when Bishop Joseph-Octave Plessis had visited Chéticamp in 1812 he had interviewed Dugas, and recorded the places she and her family encountered before their arrival in Chéticamp. Guided by this road map, census information,[3] and various histories, church records, and contemporary journals, Cohoon was able to create a work of historical fiction outlining the difficult life of an Acadian woman in the time of the British deportation campaigns and beyond. Her novel Jeanne Dugas of Acadia was published in 2013 and its French translation appeared in 2019.
Cohoon's work helped to gain further recognition for Dugas. Dugas was named a Person of National Historic Significance by the Canadian government in 2014.