Charles Augustus Briggs projected a commentary on the Song of Songs; after his sudden death, his children Alanson and Emilie Grace took over the project. Collection consists of introduction, extensive commentary on the Song of Songs, notes on a variety of topics; concordance; Hebrew words; location and archaeological notes; and sketches.

Correspondence, sermons, Hebrew-English lexicon, research notes, scrapbooks of clippings, letters copied into journals by Emilie Grace Briggs, books, pamphlets, Bibles, University of Virginia papers, University of Berlin papers, Union Theological Seminary papers, material relating to the Presbyterian Church, articles and miscellaneous. Also included is heresy material relating to Briggs' trial before the Presbytery of New York, 1892, and record of trial proceedings.

Included are diary, 1864-1866; nine notebooks on Old Testament lectures; notes on "History of Religion;" and scrapbooks containing articles by himself, material relating to the earliest Hebrew literature, and dealing with his own and Charles A. Brigg's trial, and the judicial case of the Presbyterian Church against Smith.

This collection contains 42 letters written to former Presbyterian minister James H. Ecob, the majority concerning his resignation from the Presbyterian church in protest of the heresy trial of Charles Augusts Briggs.

Julia Valentine Dobbs Briggs was an accomplished musician and wife of Charles Augustus Briggs. The collection contains three scrapbooks with clippings about the Briggs family.