^ أبCraig D. Atwood (29 Nov 2017). "Campbell, Thomas (01 February 1763–04 January 1854), one of the early leaders of the Restoration movement in American Protestantism". American National Biography Online (بالإنجليزية). DOI:10.1093/ANB/9780198606697.ARTICLE.0800231. ISSN:1470-6229. QID:Q103848899.
^Reid, D.G., Linder, R.D., Shelley, B.L., & Stout, H.S. (1990). Dictionary of Christianity in America. Downers Grove, IL: InterVarsity Press. Entry on Campbell, Thomas (1763–1854)
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