Samuel Hartlib doesn’t exactly spring to mind when thinking about influential figures of the 17th century. But he served as a sort of conduit for information and connections among them as he sought to promote his ideas regarding theology and education.

Research:

• Britannica Editors. "Samuel Hartlib". Encyclopedia Britannica, 8 Mar. 2026, https://www.britannica.com/biography/Samuel-Hartlib
• Britannica Editors. "Thirty Years’ War". Encyclopedia Britannica, 30 Mar. 2026, https://www.britannica.com/event/Thirty-Years-War
• Britannica Editors. "John Dury". Encyclopedia Britannica, 1 Jan. 2026, https://www.britannica.com/biography/John-Dury
• Hartlib, Samuel, OR John Dury. “A Further Discoverie Of The Office Of Public Address For Accommodations.” 1648. The Hartlib Papers. University of Sheffield. https://www.dhi.ac.uk/hartlib/view?docset=main&docname=14A_02_03
• Hartlib, Samuel. “Ephemerides 1635.” The Hartlib Papers. University of Sheffield. https://www.dhi.ac.uk/hartlib/view?docset=main&docname=29_03_01&term0=transtext_ephemerides#highlight
• Hartlib, Samuel. “Ephemerides 1650.” The Hartlib Papers. University of Sheffield. https://www.dhi.ac.uk/hartlib/view?docset=main&docname=28_01_49&term0=transtext_ephemerides#highlight
• Hartlib, Samuel. “Ephemerides 1651.” The Hartlib Papers. University of Sheffield. https://www.dhi.ac.uk/hartlib/view?docset=main&docname=28_02_01&term0=transtext_ephemerides#highlight
• Hartlib, Samuel. “Ephemerides 1659.” The Hartlib Papers. University of Sheffield. https://www.dhi.ac.uk/hartlib/view?docset=main&docname=29_08_01&term0=transtext_ephemerides#highlight
• McDowell, Nicholas. “The Oxford Handbook of Milton (Oxford Handbooks).” OUP Oxford. 2009. Kindle Edition.
• Masson, Victoria. “The Origins & Causes of the English Civil War.” Historic U.K. https://www.historic-uk.com/HistoryUK/HistoryofEngland/Origins-of-the-English-Civil-War/
• Milton, John. “Tractate on Education. A FACSIMILE REPRINT FROM THE EDITION OF 1673. EDITED WITH AN INTRODUCTION AND NOTES BY OSCAR BROWNING, M.Α.” Cambridge University Press. 1890. https://play.google.com/store/books/details?id=KzsVAAAAYAAJ&rdid=book-KzsVAAAAYAAJ&rdot=1
• “Pact Signed By Dury, Comenius And Hartlib, And Later By William Hamilton.” The Hartlib Papers. March 3, 1642. The University of Sheffield. https://www.dhi.ac.uk/hartlib/view?docset=additional&docname=7E_109T&term0=transtext_pact#highlight
• Trevor-Roper, Hugh. “The Crisis of the Seventeenth Century.” Liberty Fund Indianapolis. 1967. https://web.archive.org/web/20061213185209/http://olldownload.libertyfund.org/Texts/LFBooks/TrevorRoper0256/Crisis17thC/0098_Bk.pdf
• Turnbull, G. H. “Samuel Hartlib’s Influence on the Early History of the Royal Society.” Notes and Records of the Royal Society of London, vol. 10, no. 2, 1953, pp. 101–30. JSTOR, http://www.jstor.org/stable/530806
• Turnbull, G.H. “SAMUEL HAKTLIB A SKETCH OF HIS LIFE AND HIS RELATIONS TO J. A. COMENIUS.” Oxford University Press. 1920. https://ia801209.us.archive.org/21/items/cu31924027998859/cu31924027998859.pdf
• Webster, Charles. “A Portrait of Samuel Hartlib: In Search of Universal Betterment.” Open Book Publishers. 2025. Accessible online: https://www.openbookpublishers.com/books/10.11647/obp.0486