Mary O DalyMary O. Daly, or Mary O'Keefe Daly is an author, homeschool teacher, and mother of five children. She lives in the country with her husband. Mary O. Daly has written and published books on curriculum composition, on math and the natural sciences inclding elementary chemistry, geology, general science, and in other fields as well: on English sentence diagramming, elementary history and history of the Middle Ages, psychology and poetry. Read More Read Less
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