| Toleration disapprov’d and condemn’d: by a letter of the Presbyterian ministers in the city of London, presented the first of January 1645, to the reverend Assembly of Divines, sitting at Westminster by authority of Parliament ; and by twenty eminent divines, most (if not all) of them members of the Westminster Assembly, in their sermons before the two Houses of Parliament on solemn occasions, between the years 1641 and 1648. by William Assheton (WA) – Added December 16, 2021 | | |
| Unfriendly Accounts of the Westminster Assembly by (WA) – Added December 16, 2021 | | |
| Union with Christ: the existential nerve of Puritan piety by Robert Tudur Jones (WA) – Added December 16, 2021 | | |
| Unity and continuity in covenantal thought: a study in the Reformed tradition to the Westminster Assembly by Andrew J. Martin (WA) – Added December 16, 2021 | | |
| Unity and continuity in covenantal thought: a study in the reformed tradition to the Westminster Assembly Vol. I by Andrew Woolsey (WA) – Added December 16, 2021 | | |
| Unity and Disunity at the Westminster Assembly (1643-1649): A Commemorative Essay by Chad B. Van Dixhoorn (WA) – Added December 16, 2021 | | |
| Warfield, Infallibility, and the Westminster Confession by Jared Hood (WA) – Added December 16, 2021 | | |
| Westminster 1640-60: A Royal City in a Time of Revolution by J. F. Merritt (WA) – Added December 16, 2021 | | |
| Westminster Abbey Library: and other theological resources of the assembly of divines (1643-1652) by (WA) – Added December 16, 2021 | | |
| Westminster Assembly by J. A. Tallach (WA) – Added December 16, 2021 | | |