Greenslet, Ferris (1875-1959). American editor and writer. Born in Glens Falls, NY, Ferris Greenslet earned a BA (1897) from Wesleyan University and a PhD (1900) from Columbia University. He served as associate editor at the Atlantic Monthly from 1902 to 1907, and married Ella Stoothoff Hulst in 1903; they had two children, Marguerite (born 1904) and George (born 1906). As an author he specialized in biography. He became literary editor at Houghton Mifflin, the Boston publisher of the Atlantic, c. 1908 and was socially and professionally acquainted with Annie Adams Fields and Sarah Orne Jewett, who may have introduced him to Cather. He evidently solicited Cather to submit Alexander’s Bridge (1912), her first published novel, to Houghton Mifflin. In 1910, when Greenslet became editor in chief of the trade department, Roger Scaife divided his shares as a director of the company with him, and the two presented themselves to authors as partners, with Scaife handling book advertising and format and Greenslet negotiating contracts and supervising editing; when Greenslet was absent from the office, Scaife handled correspondence with Cather. Greenslet became a director of Houghton Mifflin in 1919 and manager of the trade department in 1933. Cather left Houghton Mifflin as a publisher for Alfred A. Knopf, Inc., because she became dissatisfied with the production and advertising of her books. However, she remained on cordial terms with Greenslet and undertook several projects for him after her departure. Her extant letters to him constitute one of the largest groups to a single correspondent.

Bloom, Sarah J. (1889-1961). Cather's personal secretary. Born in New York in 1889 to Russian immigrants Solomon and Bertha Bloom, Sarah J. Bloom worked for Cather from some time in the 1920s until Cather's death and continued to work for Edith Lewis on matters pertaining to Cather's literary estate thereafter. Bloom typed Cather's literary manuscripts and managed Cather's correspondence, typing dictated letters and sometimes responding for Cather when she was traveling. Bloom’s work for Cather supplemented full-time office employment in New York City (for many years she worked for the New York State Public Service Commission). She thus came to Cather and Lewis's apartment on weekends to take dictation, pick up and deliver typescripts, and deliver typed letters for signature. She died in New York city in 1961.

Zinsser, Hans (1878-1940). American microbiologist and writer. Born in New York City to cultured and well-off German immigrant parents, Hans Zinsser attended Columbia University, studying comparative literature under George Woodberry before shifting to the sciences. After graduating in 1899, he published some poetry privately in 1901 and earned his medical degree in 1903. He taught at Stanford before returning to Columbia in 1913, specializing in infectious diseases. During World War I he served with the Army Medical Corps, earning citations for his work in camp sanitation and disease control. At Harvard after 1923, he became noted for his work on typhus, isolating the bacterium and developing a vaccine. Under the byline “R.S.” Zinsser resumed publishing poetry in 1928; he was also noted for his accessible works on the effects of epidemics in history. His autobiography, written in the third person, As I Remember Him: The Biography of R.S., was published shortly before his death of leukemia.