John Quincy Adams, Kenneth V. Jones, United States. President (1825-1829 : Adams) (1970). “John Quincy Adams, 1767-1848; chronology, documents, bibliographical aids”, Oceana Pubns
Charles Haddon Spurgeon (1988). “Spurgeon at His Best: Over 2200 Striking Quotations from the World's Most Exhaustive and Widely-read Sermon Series”, Baker Publishing Group