| De synode van Westminster 1643-1649 by W. Van't Spijker (WA) – Added December 16, 2021 | | |
| Debate of Redemption at the Westminster Assembly by David Blunt (WA) – Added December 16, 2021 | | |
| Denominationalism as a Basis for Ecumenicity: A Seventeenth Century Conception by Winthrop S. Hudson (WA) – Added December 16, 2021 | | |
| Descendit: delete or declare? a defense against the neo-deletionists by Jeffery L. Hamm (WA) – Added December 16, 2021 | | |
| Descriptions of the Westminster Assembly by (WA) – Added December 16, 2021 | | |
| Did They Dip? or, An Examination Into the Act of Baptism as Practiced by the English and American Baptists Before the Year 1641 by John T. Christian (WA) – Added December 16, 2021 | | |
| Discord in Zion: The Puritan Divines and the Puritan Revolution by Tai Liu (WA) – Added December 16, 2021 | | |
| Drawn into Controversie: Reformed Theological Diversity and Debates Within Seventeenth-century British Puritanism by Michael A. G. Haykin (WA) – Added December 16, 2021 | | |
| Drawn into Controversie: Reformed Theological Diversity and Debates Within Seventeenth-Century British Puritanism by Ryan M. McGraw (WA) – Added December 16, 2021 | | |
| Ecclesiology, piety, and Presbyterian and independent polemics during the early years of the English Revolution by Youngkwon Chung (DCG, WA) – Added December 16, 2021 | | |