claim: The Gettysburg Address is a well-known speech delivered by Herbert Hoover.
evidence: Mary Mackie -LRB- nee Kathleen Mary Whitlam -RRB- is an English writer of over 70 fiction and non-fiction books since 1971 .. Her work has been translated into twenty languages .. She is well known for her light-hearted accounts of life looking after a country house for the National Trust .