RECONSTRUCTION OF HISTORIC INFRASTRUCTURE AT INGLESIDE PLANTATION, LINCOLN COUNTY, NC USING GPR AND ARCHIVAL RESEARCH
In July 2018, we collected 12 grids (3266 m2) in open areas on the south and west sides of the mansion using a Geophysical Survey Systems SIR-3000 Single Channel GPR data acquisition system with 400 MHz antenna. GPR Slice® was used to process the data and produce 3-D block diagrams of each survey grid. Anomalies of historical significance are either rectangular or circular and can be distinguished from the underlying foliated metamorphic bedrock. A 13 x 7 m rectangular anomaly was imaged in the same orientation, 8 m behind Ingleside. This is interpreted to represent the footprint of an older house, perhaps belonging to Jacob Forney Sr. Within this structure a high amplitude reflector covering a 4 x 6 m area, at a depth of 0.8 m below the existing ground surface, is interpreted as a stone or brick-lined cellar. Four distinct reflection-free anomalies outline the possible footprint of a rectangular 5 x 9 m kitchen west of the mansion. These anomalies extend to 0.8 m depth. The structure lies next to a pile of boulders that were formerly chimney stones. Adjacent to the kitchen is a 25 x 15 m area with plow scars in the upper 20 cm suggesting the location of a kitchen garden. Behind the mansion, several small rectangular reflection-free anomalies appear to penetrate through the residual soils up to a meter in depth suggesting the location of privies. This project illustrates the benefit of combining geophysics with historical archaeology to interpret the past.