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Theodore Dunham and two unidentified (his wife and mother?) women standing behind the Mount Wilson and Las Campanas Observatories sign, Pasadena. The sign reads:"The Observatories, Carnegie Institution of Washington". Dunham is wearing a suit; the woman in the center is wearing a dress. Shrubs and small trees surround the sign. The office building is seen behind them. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.