By: Lindsay O. Duvall , Pub. 1979, reprinted 2020, 156 pages, Index, ISBN #0-89308. Northumberland County was created in 1645. Many of her early residents were from Maryland and in turn many of her residents later moved on to Essex and Stafford Counties and to other counties south of the James River. This book contains the Court Minutes of the county from 1678-1713.