Parents

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Robert Grant Aitken grad student 1925 UC Berkeley
William Wallace Campbell grad student 1925 UC Berkeley
 (A determination of the Sun's velocity with respect to stars of magnitude 9 to 10.)
Joseph Haines Moore grad student 1925 UC Berkeley
Robert Julius Trumpler grad student 1925 UC Berkeley
Pieter Johannes van Rhijn grad student 1926 RUG
 (De zonsbeweging met betrekking tot apparent zwakke sterren.)

Children

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Edwin Walter Dennison research assistant 1949 Swarthmore
Alexander N. Vyssotsky grad student 1926 UVA
Sarah Lee Lippincott grad student 1950 Swarthmore
Laurence W. Fredrick grad student 1959 Penn
Arthur R. Upgren post-doc Swarthmore
Kaj Aage Strand post-doc 1938-1942 Swarthmore
Wulff-Dieter Heintz research scientist 1967 Swarthmore