Compare Constellations

Information: The first column shows data points from Harkness, Douglas Alexander Earsman 1902-1980 in red. The third column shows data points from Harkness, Douglas Scott, 1903- in blue. Any data they share in common is displayed as purple boxes in the middle "Shared" column.

Name Entries

Harkness, Douglas Alexander Earsman 1902-1980

Shared

Harkness, Douglas Scott, 1903-