About Mary Maude Books by Mary Maude Petworth Emigration Set Assisting Emigration to Upper Canada: The Petworth Project, 1832-1837; English Immigrant Voices: Labourers' Letters from Upper Canada in the 183s by (author) Wendy Cameron, Sheila Haines & Mary Maude English Immigrant Voices Labourers' Letters from Upper Canada in the 1830s by (author) Wendy Cameron, Sheila Haines & Mary Maude