Filtering by: People Kraft, Robert P., 1927-2015 Remove constraint People: Kraft, Robert P., 1927-2015 People Lick Observatory Remove constraint People: Lick Observatory People Whitford, Albert E. (Albert Edward), 1905-2002 Remove constraint People: Whitford, Albert E. (Albert Edward), 1905-2002 Topic Astronomers Remove constraint Topic: Astronomers Topic Scientists Remove constraint Topic: Scientists