After a brief stint as drillmaster with an artillery company formed in
Page County, Harris was assigned to duty with Col.
William N. Pendleton and, in the same month (November 1861) transferred as assistant adjutant general on the staff of General
Cadmus Wilcox. Promoted to captain in January 1862, Harris resigned from Wilcox's staff in July 1862 and was assigned as a lieutenant and acting ordnance officer in Gen.
Daniel Harvey Hill’s division. Promoted to the temporary rank of captain in the spring of 1863, Harris was yet reassigned and named Chief of Ordnance of Gen.
Robert E. Rodes’ division. Following the loss at Gettysburg, Harris deserted from the army feeling that further effort was futile. However, some records reveal that he may have had other reasons for leaving the army in that he was denied a transfer to Major
Harry W. Gilmor’s cavalry battalion. ==Early life in Kansas==