About Graeme Mercer Adam G. Mercer Adam (1839-1912) was a Canadian author, editor, and publisher. Books by Graeme Mercer Adam An Algonquin Maiden A Romance of the Early Days of Upper Canada by (author) Graeme Mercer Adam & Agnes Ethelwyn Wetherald series edited by Douglas Lochhead An Algonquin Maiden A Romance of the Early Days of Upper Canada by (author) Graeme Mercer Adam & Agnes Ethelwyn Wetherald series edited by Douglas Lochhead