Since its founding in 1891, many people have passed through the doors of the Vatican Observatory. A quick perusal of our guestbook reveals several Names, including Popes, nobel laureates, astronauts, actors, and saints.
For the past few weeks, we have been highlighting visitors who came on the occasion of the first General Assembly of the International Astronomical Union. Today's visitors all came on May 10, 1922. They are Jacques Liouville, Jules Baillaud, Oliver Justin-Lee, and Abbé Chauve-Bertrand.
Jacques LiouvilleNext to his name, Dr. Jacques Liouville (1879-1960) wrote, "Directeur de'Institut Scientifique Chérifien (Maroc)" ("Director of the Chérifien Scientific Institute (Morocco)").
Dr. Liouville was the first director of the Chérifien Institute, which he directed from 1920 until 1937. His areas of specialty were medicine and marine biology. He was also an explorer who participated in two antarctic expeditions in 1908 and 1910. These expeditions resulted in a study of Antarctic cetaceans.
He was the son of the prominent French politician and doctor, Henri Liouville (1837-1887).
Liouville is not listed as a registered participant in the IAU meeting.
Maria Grazia Valeri-Curti
Anna Beatrice Valeri-Curti
There are two women who signed the book next: Maria Grazia Valeri Curti and Anna Beatrice Valeri-Curti (whose inscription includes what appears to be "V. Lansebri" but I can't be sure). I have been unable to find information about either of these two people.
Jules BaillaudJules Baillaud (1876-1960) wrote, "Observatoire Paris".
His father, Benjamin Baillaud (who was also present at the meeting and signed the guest book), was the president of the IAU. Jules Baillaud was an assistant astronomer at the Paris observatory from 1904 until 1925. He would become director of the Pic du Midi observatory from 1937-1947.
Between 1922 and 1947, he directed the Carte du Ciel program.
The asteroid 1280 Baillauda is named for him.
Jules Baillaud sat on the IAU Carte du Ciel commission and the commission for stellar photometry.
The next signature belongs to a "Thilde Bardeloni" who did not append any further information. I presume that she is the wife of Col. Cesare Bardeloni, who signed several lines further down the page.
Oliver Justin LeeNext to his name, Oliver Justin Lee FMRAS (1881-1964) wrote, "Yerkes Observatory U.S.A."
At the time of the IAU meeting, he was as astronomer at Yerkes Observatory in Wisconsin, but would move to Northwestern University in 1928 and would be director of the Dearborn Observatory from 1931-1947.
Much of his scientific work involved classifying and cataloging stars, of which his work numbers more than 44,000. He also measured stellar parallaxes for several of them. Other work involved observations of the asteroid Eros and observations of solar eclipses.
In 1930, Lee proposed a theory for the origin of the moon as having been ripped from the Pacific basin.
He was the author of a popular astronomy text, Measuring our Universe (1949).
Lee wrote a lengthy article about the IAU meeting for Popular Astronomy.
He served on the IAU commission on the solar atmosphere, the commission on solar physics, and the commission on stellar parallax.
Fr. François Adolphe Chauve-Bertrand (1877-1962) wrote, "St. Reverien (Niévre)."
He had been a military chaplain from 1914-1919. Between 1922-1953 he was a priest in Saint-Révérien.
He had been working on the reform of the calendar at least as early as 1907, and in 1921 published a benchmark review of the subject (La Renaissance du Livre). On this topic, he became a consultant to the League of Nations as well as its successor, the United Nations. (It should be noted that in 1956 the topic was dropped, at least in part due to U.S. pressure. Thus, today we continue to use the same calendar system as we did in the previous few centuries.)
He was a member of the IAU commission on the reform of the calendar.