5 Aug. 1802–1 Aug. 1884
Lacy remained in Raleigh until 1855, when he became president of Davidson College. Early in his administration, the college received a magnificent benefaction from the late Maxwell Chambers, making it the wealthiest private college in the South. It was also during Lacy's tenure that the large and handsome chambers building was erected. In 1860 he left Davidson to enter the home mission field of Orange Presbytery, and in August 1863 he became a chaplain in the Forty-seventh Regiment. The regiment saw action in Virginia, particularly at Spottsylvania Court House, Cold Harbor, and Reams' Station. While in the field, Lacy conducted "a Christian Association and an Educational Institute for the moral and mental improvement of his men." For a time he also was chaplain at the General Military Hospital at Wilson, N.C. After the war he taught school, sometimes at Peace Institute in Raleigh, and served a number of churches in the Orange Presbytery that were temporarily without a regular pastor. In 1882 he became pastor of the church in Jonesboro where he spent the remainder of his life.
In 1839 Lacy received an honorary M.A. degree from The University of North Carolina. In 1852 the university awarded him—along with the Reverend Moses Ashley Curtis—a D.D. degree; on the same occasion, it gave Matthew Fontaine Maury a doctor of laws degree. Two of Lacy's sermons were published: A Thanksgiving Discourse (1851) and Address Delivered at the General Military Hospital, Wilson, N.C., on the Day Appointed by the President as a Day of Fasting, Humiliation and Prayer (1863).
Lacy was married twice. His first wife was Williana Wilkinson (1806–46), and following her death he married Mary Ritchie Rice in 1849. By his first wife he was the father of Elizabeth, James Horace, Drury, Jr., and William Sterling. By his second wife he was the father of Benjamin Rice.