Question: What American librarian preceded Courtney Young as the ALA president?

Context articles: Loriene Roy
American Library Association Rainbow List
Milton J. Ferguson
Miriam Matthews
Courtney Young (librarian)
Janet M. Suzuki
Sari Feldman
Carl Vitz
Walter Lewis Brown
Joseph Henry Reason

Loriene Roy is an American librarian from Texas.
 She was the 2007–2008 President of the American Library Association (ALA).
The ALA Rainbow List is an annual list of "books with significant gay, lesbian, bisexual, or transgender content, and which are aimed at youth, birth through age 18" produced by the American Librarian Association's (ALA's) Rainbow Project, which is run by the ALA's Gay, Lesbian, Bisexual, and Transgender Round Table (GLBTRT) and Social Responsibilities Round Table (SSRT).
Milton James Ferguson (April 11, 1879 – October 23, 1954) was an American librarian.
 He graduated from the University of Oklahoma in 1906, and served as librarian of the University of Oklahoma from 1902 to 1907.
 He helped organize and was elected the first President of the Oklahoma Library Association (1907–08).
 He later became California State Librarian (1917–1930).
 In 1926 Ferguson was an honorary member of the California Society of Printmakers (né Etchers).
 He worked for the Carnegie Corporation making library surveys in Africa, and was librarian of the Brooklyn Public Library until 1949.
 In 1938–39, Ferguson was president of the American Library Association.
Miriam Matthews (August 6, 1905 – June 23, 2003) was an American librarian, advocate for intellectual freedom, historian, and art collector.
 In 1927, Matthews became the first credentialed African American librarian to be hired by the Los Angeles Public Library (LAPL).
Courtney Young is an American librarian and scholar, who served as the President of the American Library Association for the 2014–2015 year.
 On June 30, 2015, her term as ALA President ended, and she passed the title on to Sari Feldman.
Janet Suzuki (1943 – 1987) was a library leader.
 She devoted her life to social justice and civil rights issues.
 Feeling that the needs of Asian American librarians were unrepresented and under served by the American Library Association, she co-founded the Asian American Librarian Caucus (AALC) in 1975.
 It was the first Asian-American library organization that served the pan Asian American librarian community.
 It was a predecessor to the Asian/Pacific American Librarians Association.
Sari Feldman (born in South Fallsburg, N.Y) is an American librarian.
 She is the current executive director of Cuyahoga County Public Library, in Parma, Ohio, and was president of the American Library Association (ALA) from 2015 to 2016.
 During her presidency, she launched the Libraries Transform public awareness campaign that increased funding support for libraries and sought to advance information policy.
Carl Peter Paul Vitz (June 3, 1883 – January 1, 1981) was an American librarian and author.
 He received a certificate from Western Reserve University Library School, a degree from Adelbert College and a bachelor's degree in library science from New York State Library School at New York State Normal College.
 He served as a library director for the Toledo-Lucas County Public Library (1922–1937), the Minneapolis Public Library (1937–1945) and the Public Library of Cincinnati and Hamilton County (1946–1955).
 He served as the president of the American Library Association from 1945–1946.
 During that time, Vitz wrote a letter to the President of the United States on behalf of the profession, addressing potential candidates for the vacant position of Librarian of Congress.
 In the letter, Vitz suggested that the position "requires a top-flight administrator, a statesman-like leader in the world of knowledge, and an expert in bringing together the materials of scholarship and organizing them for use—in short, a distinguished librarian".
 Over the course of his career, Vitz planned or consulted on more than sixty library projects involving construction, site selection and remodeling.
Walter Lewis Brown (January 4, 1861 – October 16, 1931) is an American librarian.
 Brown served as President of the American Library Association from 1916 to 1917.
 Brown was instrumental in establishing a public library in Buffalo, New York, now the Buffalo and Erie County Public Library.
 Brown led the American Library Association at the beginning of the first World War.
 In that role, Brown initiated a partnership between the American Library Association and the Library of Congress to create the ALA War Service Committee.
Joseph Henry Reason (March 23, 1905 – July 26, 1997) was an American librarian.
 He was director of the Howard University library system for 25 years.
 He was the first African-American to serve as president of the Association of College and Research Libraries (ACRL) and to be nominated for president of the American Library Association (ALA).
 In 1999, "American Libraries" named him one of the "100 Most Important Leaders We Had in the 20th Century".
 His son, J. Paul Reason, was the first African-American four star Admiral in the United States Navy.