Secondary Sources ~ 1874

A Catechism of Revealed Truth, with Proofs from the Scriptures, Prepared on the Basis of the Westminster Assembly’s Catechism by Henry D. Brown (WSC)
Minutes of the sessions of the Westminster Assembly of divines, while engaged in preparing their Directory for Church Government, Confession of Faith, and Catechisms (November 1644 to March 1649). From transcripts of the originals procured by a committee of the general assembly of the Church of Scotland by Alexander F. Mitchell (WA)