Compare Constellations

Information: The first column shows data points from Blackwood, John, d. 1879. in red. The third column shows data points from Blackwood, John, 1818-1879 in blue. Any data they share in common is displayed as purple boxes in the middle "Shared" column.

Name Entries

Blackwood, John, d. 1879.

Shared

Blackwood, John, 1818-1879