Gerald Bray, ed. James, 1-2 Peter, 1-3 John, Jude, Ancient Christian Commentary on Scripture, vol. 11 -- Mostly of historical interest.
John Calvin, Commentaries on the Epistle of James -- Solid and helpful.
Daniel M. Doriani, James, REC -- Dropped as it lacked significant value academically or homiletically. Evangelical.
John Gill, The General Epistle of James -- Solid and helpful. A bit dry.
Douglas J. Moo, The Letter of James, PNTC​ -- Became the main commentary in the series. Moo has apparently matured in his understanding of the law to a more historically Reformed rather than Lutheran position. Excellent grammatical and lexicographical help. Moo does not reference the ESV at all.
Ralph Wardlaw, The Lectures on the Epistle of James -- Of value homiletically.