Compare Constellations

Information: The first column shows data points from Robertson, John, active 1816-1826 in red. The third column shows data points from Robertson, Powhatan, fl.1816-1819. in blue. Any data they share in common is displayed as purple boxes in the middle "Shared" column.

Name Entries

Robertson, John, active 1816-1826

Shared

Robertson, Powhatan, fl.1816-1819.