| Plain talk on Christian doctrine: a pastor looks at the Shorter Catechism by Gordon Kenworthy Reed (WSC) – Added December 16, 2021 | | |
| Price one penny halfpenny. The new proof Catechism. Stating separately and proving the doctrines taught in the Shorter Catechism by (WSC) – Added December 16, 2021 | | |
| Principles of Sabbath-Keeping: Jesus and Westminster by Ryan M. McGraw (WLC, WSC) – Added December 16, 2021 | | |
| Principles of the Doctrine of Christ, Delivered in the Assemblies Shorter Catechism, Made plainer to Babes in Knowledge by (WSC) – Added December 16, 2021 | | |
| Questions & Answers on the Shorter Catechism by John Brown (WSC) – Added December 16, 2021 | | |
| Questions on the Shorter Catechism by James Morison (WSC) – Added December 16, 2021 | | |
| Questions on the Shorter Catechism, with Alphabetical Table of Definitions, designed to aid in the work of Catechetical Instruction by John Dickey (WSC) – Added December 16, 2021 | | |
| Questions on the Shorter Catechism…Part II. For the higher Classes by Harvey Newcomb (WSC) – Added December 16, 2021 | | |
| Reformed catechetics by Joseph H. Hall (WLC, WSC) – Added December 16, 2021 | | |
| Remarks on a catechism, publish’d under the title of The Assembly’s shorter catechism revised, and render’d fitter for general use. The Assembly’s own catechism is likewise added, as an appendix to these remarks by John Guyse (WSC) – Added December 16, 2021 | | |
