Question: What year was Frederick Bartlett appointed trustee of the Art Institute of Chicago?
About the article "A Sunday Afternoon on the Island of La Grande Jatte", section "Acquisition by the Art Institute of Chicago".

Candidate passages:
In 1923, Frederick Bartlett was appointed trustee of the Art Institute of Chicago.
He and second wife, Helen Birch Bartlett, loaned their collection of French Post-Impressionist and Modernist art to the museum.
It was Mrs. Bartlett who had an interest in French and avant-garde artists and influenced her husband's collecting tastes.
"Sunday Afternoon on the Island of La Grande Jatte" was purchased on the advice of the Art Institute of Chicago's curatorial staff in 1924.
In conceptual artist Don Celender's 1974–5 book "Observation and Scholarship Examination for Art Historians, Museum Directors, Artists, Dealers and Collectors", it is claimed that the Institute paid $24,000.00 for the work).
In 1958 the painting was loaned out for the only time – to the Museum of Modern Art in New York City.
On April 15, 1958, a fire there, which killed one person on the second floor of the museum, forced the evacuation of the painting which was on a floor above the fire in the Whitney Museum which adjoined MOMA at the time.
  Director of Illinois Merchants Trust Company  Chairman of Ways and Means committee  Chairman of the World's Columbian Exposition  President of the Glenwood, Illinois Manual Training School  Trustee of Hull House  Trustee of Chicago Orphan Asylum  Trustee of Girls' Refuge  Trustee of First State Pawners' Society  Trustee of Art Institute of Chicago  
Horace Sweeney Oakley (1861-1929) was a Chicago lawyer, scholar, and philanthropist.
He was as a trustee to cultural institutions throughout Chicago (namely the Newberry Library, the Art Institute of Chicago, the Orchestral Association, and the American School of Classical Studies at Athens.  
Fred Nicholas became engaged in the pursuit of art in 1950 when he was a law student at the University of Chicago.
What little spare time he had was spent at the Chicago Art Institute exploring the art of old and new cultures.
Upon graduating from Law School, Nicholas took art courses at UCLA and USC.
During his legal career, Nicholas represented numerous artists and art galleries including William Brice, Paul Kantor Gallery, Ernest Raboff Gallery, Margo Leavin Gallery, Frank Perls Gallery, Martin Lowitz Gallery, ACE Gallery, Harry Franklin Gallery and Felix Landau Gallery.
Nicholas began collecting art in the 1950s and purchased contemporary and primitive art from dealers and auction houses throughout the country.
He collected Rauschenberg, Warhol, Stella, Lichtenstein, Reinhardt and many of the New York School artists as well as Pre-Columbian, African, New Guinea and American Indian Art.
His interest in art brought him to the various institutions in the art field.
Nicholas served the Museum of Contemporary Art Los Angeles as Chairman for Five years, Vice Chairman for 4 years and serves as a Life Trustee.
He is presently a Trustee of Art Center College of Design in Pasadena, Frederick R. Weisman Art Foundation and Frederick R. Weisman Philanthropic Foundation.
He was the principal advisor to the San Francisco Museum of Modern Art and the Santa Monica Museum.
He located the site for MOCA’s Temporary Contemporary (now The Geffen Contemporary at MOCA) and negotiated a 99-year lease with the City of Los Angeles and MOCA.
Nicholas hired Frank Gehry as architect and supervised the design and construction of the Building.
He headed the architectural committee for the development of the MOCA building on Grand Avenue, supervised architect Arata Isozaki and was in charge of the construction project for 5 years.
Nicholas served as the first Chairman of the Walt Disney Concert Hall Committee, guiding the development of the building.
He created the program and architectural infrastructure for the Concert Hall including the selection of the architect, Frank Gehry and the acoustician, Nagata & Associates.
He served as chairman for 8 years. 
Catherine J. Melchert was the Mayor of Bartlett, Illinois from 1993 to 2009.
In 1982 she was appointed Trustee, and later elected to a two year term in 1983.
She served as a Trustee until 1993, when she was elected mayor.
She has been mayor ever since.
She has been a Bartlett resident since 1970.
In 2008, the U.S. Conference of Mayors gave Melchert a "small town honorable mention climate award" for her work in adopting a new building code that promoted environmental protection and conservation.