Additional information can be found on Jacobus’ Wikipedia page, and in the Autobiography published in The Christian's Heritage; and Other Sermons (New York: Robert Carter and Brothers, 1878).
Robert H. Ellison
The User Guide for the Library of Appalachian Preaching is a Google Sheet that can be searched, sorted, and downloaded for offline use.
This part of the Guide provides information about Jacobus' sermons. It includes the title, scripture text, date and place the sermon was preached (if known), and so on. This information is available in the master list of sermons as well.
Melancthon Williams Jacobus and Matthew Newkirk
This collection was edited by Matthew Newkirk, Jacobus’ son-in-law. According to Newkirk’s Preface, “Many former parishioners and admiring hearers of Dr. Jacobus have requested for publication these sermons which they have heard with profit.” In accordance with their wishes, these 20 sermons “are now presented, without alteration or revision, just as they were written and left” (p. iii, emphasis in the original).