Compare Constellations

Information: The first column shows data points from Black, W. P. (William Perkins), 1842-1916. in red. The third column shows data points from Black, W. P. (William Perkins), 1842- in blue. Any data they share in common is displayed as purple boxes in the middle "Shared" column.

Name Entries

Black, W. P. (William Perkins), 1842-1916.

Shared

Black, W. P. (William Perkins), 1842-