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Filtering by: People Aitken, Robert Grant, 1864-1951 Remove constraint People: Aitken, Robert Grant, 1864-1951 People Lick Observatory Remove constraint People: Lick Observatory People Tucker, R. H. (Richard Hawley), 1859-1952 Remove constraint People: Tucker, R. H. (Richard Hawley), 1859-1952 Place Mount Hamilton Remove constraint Place: Mount Hamilton

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