Is the Old School Presbyterian Church Apostate for Supporting the Union during the Civil War?

Smith, Joseph T. Address of the Acts and Deliverances of the General Assembly of the Old School Presbyterian Church, during the past Five Years, on the State of the Country; Delivered by Request, in the Central Presbyterian Church, Baltimore, on Thursday Evening, June 21, 1866. Baltimore: Wm. K. Boyle, Printer, 1866. First Edition. [9130] Printed wrapper, some chipping & soil, 9 x 5 3/4 inches, 36 pp. Good. Pamphlet. An address in which the actions of the General Assembly are recited, and considered, in light of its support of the Federal Troops and the Union during the American Civil War. "The Assembly declares that the Federal Government is that ordinance of God which we are bound to reverence and obey; and that rebellion against it is a sin..." The author cites the view that such statements as their Spring Resolutions of 1861 overstepped their bounds and made the members of Presbytery meddlers in Civil Affairs. He treats also with the 1845 controversies over slavery within the P