Hendren was born in Staunton, Virginia. He was the nephew of locally prominent Presbyterian minister John Hendren. He attended The College of William & Mary, studied law, passed his bar exam, and established a prosperous legal practice in Staunton. He married, raised a family, and built a large mansion, "Selma."
Secretary of the Treasury Christopher Memminger resigned his post on July 18, 1864, and was replaced by fellow South Carolinian George Trenholm. However, Edward C. Elmore initially stayed on as Treasurer under Trenholm, but resigned in the autumn. Shortly afterward, Hendren posted his bond on October 10, 1864, and assumed the role of Treasurer. He stayed in his post until the fall of the Confederacy in April 1865.
Following the war, Hendren returned to Staunton and was a judge for Augusta County, Virginia.
- Current, Richard N., Encyclopedia of the Confederacy, Simon & Schuster, 1995. ISBN 0132760495.
- Current, p. 1614.
- Augusta County History Retrieved 2008-10-07
- "Selma" Residence of Judge John N. Hendren Retrieved 2008-10-27
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Edward C. Elmore |width="40%" style="text-align: center;" rowspan="1"|Confederate States Treasurer
1861–1864 |width="30%" align="center" rowspan="1"| Succeeded by
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