Two key 19th century histories of the American Presbyterians Churches

In the late 1890s, Phillip Schaff led a team of editors in publishing the American Church History Series, "consisting of denominational histories published under the auspices of the American Society of Church History." Thomas Cary Johnson wrote the history of the Southern Presbyterian Church, and Robert Ellis Thompson wrote the history of the Northern Presbyterian Church. Both are foundational for understanding how the 19th century Presbyterian churches understood themselves and their past, present, and futures. One nice feature of these books is a detailed bibliography of sources used from the 18th and 19th centuries. These volumes are little known, but worth reading.