Secondary Sources ~ 1933
| Book Review: IV. Homiletical and Historical: The Westminster Assembly and its Work by Frank Marion Powell (WA) | ||
| Negotiations about church unity: 1628-1634; John Durie, Gustavus Adolphus, Axel Oxenstierna by Joseph Minton Batten (About) | ||
| The Religious Policy of John Pym (England) by Muriel B. Freeman (About) | ||
| The Westminster Assembly and Its Work by Frank Marion Powell (WA) |