Mary Esther MacGregor nee Miller (1874-1961) was a Canadian author, who also wrote under the pseudonym Marian Keith. Born in Canada, she taught Sunday School and in 1909 married a Presbyterian minister. Some of her first stories were published in the Westminster Magazine. Her works include: Duncan Polite: The Watchman of Glenoro (1905), The Story of Saint Christopher (1905), Stories from Dante (1906), The Silver Maple: A Story of Upper Canada (1906), Stories of King Arthur's Knights (1907), The Netherlands (1907), Treasure Valley (1908), Stories of the Vikings (1908), Stories of Siegfried (1909), The Pilgrim's Progress (1910), 'Lizbeth of the Dale (1910), The Story of France (1911), The Story of Rome (1912), The Black Bearded Barbarian (1912), The Story of Greece (1914), The Pot O' Gold: At the End of the Rainbow (1914), Happy Heart Comes to Canada (1914), Little Miss Melody (1921), The Bells of St Stephen's (1922), A Gentleman Adventurer (1924), Under the Grey Olives (1927), Shining Towers (1935) and As A Watered Garden (1947).