• Macaulay, Thomas Babington (1856). The History of England from the Accession of James II. 1. New York: Harper & Brothers. m/s. 105. ISBN 0-543-93129-3.
• Hanbury, Benjamin (1844). Historical Memorials Relating to the Independents Or Congregationalists: From Their Rise to the Restoration of the Monarchy. 3. halaman 118, 635.
• Hunt, John (2010) [1870]. Religious Thought in England, from the Reformation to the End of Last Century; A Contribution to the History of Theology. 2. General Books LLC. m/s. 5. ISBN 1-150-98096-6.
• Roberts, Chris (2006). Heavy Words Lightly Thrown: The Reason Behind Rhyme. Thorndike Press. ISBN 0-7862-8517-6.
• Worden, Blair (2009). The English Civil Wars 1640–1660. London: Penguin Books. ISBN 0-14-100694-3.

Pembahagian

•  This article incorporates text from a publication now in the public domain:  Roundhead. Encyclopædia Britannica (ed. ke-11). 1911.