Knopf, Alfred A. (1892-1984). President of New York publisher Alfred A. Knopf, Inc. Knopf received his BA from Columbia University in New York City in 1912 and founded Alfred Knopf, Inc., in 1915 with his future wife Blanche Wolf. They married in 1916, and their son Alfred “Pat” Knopf was born in 1918. Cather chose him as her publisher beginning with Youth and the Bright Medusa (1920) and One of Ours (1922), partly because she was dissatisfied with the promotion of her books by Houghton Mifflin but also because she recognized the high quality of Knopf's books, as well as what she regarded as his intelligent advertising. Knopf was noted for publishing the work of leading European and South American writers in translation, as well as original works. Knopf and Cather’s extensive correspondence testifies to their mutual professional respect and to what also became an important personal friendship.

Menuhin, Yehudi (1916-1999). Violinist and conductor. Born in New York City to Moshe Mnuchin and Marutha Sher Mnuchin, immigrant Russian Jews by way of Palestine who changed the spelling of their surname and moved the family to San Francisco in 1918, Yehudi started violin lessons at age four and made his first public appearance in 1922. His two younger siblings, Hepzibah and Yaltah, studied piano, although his parents prioritized the musical career of their son over their daughters. With the support of patron Sidney Ehrman, the Menuhin family followed Yehudi’s teacher Louis Persinger to New York City. Ehrman also sponsored Yehudi for a year of study in Paris, France, with Georges Enesco. Yehudi began attracting national attention in 1927 and recorded and toured the U.S. in 1929. That year at Carnegie Hall, his performance of concertos by Bach, Beethoven, and Brahms with Bruno Walter and the Berlin Philharmonic inspired Albert Einstein to proclaim “now I know there is a God in Heaven”; Cather was also in the audience for this concert. In 1930, the Menuhin family took up residence in Paris, where Cather first met them in the home of Jan Hambourg and Isabelle McClung Hambourg and became a family friend; the children called her “Aunt Willa.” In the 1930s, the Menuhin family made the Ansonia Hotel its home base during their frequent stays in New York City. Cather took the Menuhin children on walks around Central Park, read Shakespeare with them, and gave them books as gifts. Yehudi’s sister Hepzibah accompanied her brother on piano; they made their first recording together in 1933 and often performed together. The family purchased a ranch in Los Gatos, CA, in 1935, and after a world tour that year, Yehudi withdrew from performing for 18 months and stayed at the ranch with his family. He returned to the concert stage in 1937 and met and married Nola Nicholas in 1938 (Hepzibah married Nola’s brother Lindsay). Yehudi and Nola had two children, Krov and Zamira. Cather enjoyed a late life visit from Hepzibah and Yehudi and their families in 1947. Cather corresponded regularly with the adult Yehudi, giving him personal advice, although only one original letter has surfaced. In 1947, Yehudi and Nola divorced and he married British ballerina Diana Gould, with whom he had two more children. Living in Europe, he continued his career as a performer and also became a conductor, established a school in England, and became a British citizen. He died in Berlin, Germany, while on tour.

Wiener, Anna Cora (1857-after 1940). Cather’s New York City acquaintance. Born in New Jersey, daughter of Bohemian-born parents, jeweler Solomon Wiener and his wife, Anna Wiener grew up in a household that included Solomon’s siblings Joseph and Teresa. In 1887, Anna visited her uncle, Charles Wiener, Cather’s friend, in Red Cloud, NE. In 1898 widower Charles Wiener joined his siblings’ household on Fifth Avenue in New York City. In 1906 Anna Wiener married Charles Wiener, and Cather visited their household frequently until Charles’ death in 1917. Anna later moved to San Francisco, CA.