Knopf was born into a Jewish family in New York City. His father, Samuel Knopf, was an advertising executive and financial consultant, his mother was Ida Japhe, a school teacher. Samuel Knopf was originally from Warsaw, Poland, but came to New York with his parents, where he worked his way up the directorship at a small mercantile bank. Alfred's mother, Ida, was from a Latvian Jewish family who settled in New York. For a time Knopf's parents lived in the Midwest and in Virginia. Ida committed suicide when Alfred was five years old and his sister Sophia was almost two. That same day, Alfred's father had filed for divorce in which he named Ida as an adulteress. His father later married Lillian Harris, who had a daughter, Bertha, from a previous marriage. With Lillian, Samuel had another son, Edwin H. Knopf, who worked for Alfred briefly, then became a film director and producer. Alfred attended Columbia University, where he was a pre-law student and a member of the Peithologian Society and the Boar's Head Society. He began to show an interest in publishing during his senior year, becoming advertising manager of an undergraduate magazine. His interest in publishing was allegedly fostered by a correspondence with British author John Galsworthy. Galsworthy was the subject of Knopf's senior thesis and after visiting Galsworthy in England, Knopf gave up his plans for a law career, and upon his return went into publishing. Knopf was introduced to his future wife and business partner, Blanche Knopf, at a party at the Lawrence Athletic Club in 1911. Their relationship was built on their mutual interest in books. Blanche said of their relationship, "Alfred had realized I read books constantly and he had never met a girl who did.... I saw him and talk books, and nobody liked him--my family least of all. But I did, because I had someone to talk books to and we talked of making books...We decided we would get married and make books and publish them." Alfred and Blanche were married on April 4, 1916. Knopf worked as a clerk at Doubleday, then as an editorial assistant to Mitchell Kennerley. Knopf, along with Blanche Knopf, founded the publishing house Alfred A. Knopf in 1915. The company initially emphasized European, especially Russian, literature, hence the choice of the borzoi as a colophon. At that time European literature was largely neglected by American publishers; Knopf published authors such as Simone de Beauvoir, Albert Camus, Joseph Conrad, E. M. Forster, Sigmund Freud, André Gide, Franz Kafka, D. H. Lawrence, Thomas Mann, W. Somerset Maugham, T.F Powys, Wyndham Lewis and Jean-Paul Sartre. While Blanche was known to as a superb editor, Alfred was always interested in more of the sales side than in editing. Knopf also published many American authors, including Conrad Aiken, James Baldwin, James M. Cain, Theodore Dreiser, Shirley Ann Grau, Dashiell Hammett, Langston Hughes, Vachel Lindsay, H.L. Mencken, George Jean Nathan, John Updike, and Knopf's own favorite, Willa Cather. From 1924 to 1934, he published the famous literary magazine founded by Mencken and Nathan, The American Mercury. He often developed a personal friendship with his authors. Knopf's personal interest in the fields of history, sociology, and science led to close friendships in the academic community with such noted historians as Richard Hofstadter, Arthur Schlesinger, Jr., and Samuel Eliot Morison. A prominent Republican until Watergate, Knopf often drew legislators into lengthy correspondence by mail. He was also a member of the Peabody Awards Board of Jurors from 1940 to 1946. Knopf himself was also an author. His writings include Some Random Recollections, Publishing Then and Now, Portrait of a Publisher, Blanche W. Knopf: July 30, 1894-June 4, 1966, and Sixty Photographs. When the Knopfs' son Alfred A. Knopf Jr. left the company in 1959 to found Atheneum Publishers, Alfred and Blanche became concerned about the eventual fate of their publishing house, which had always been a family business. The problem was solved in 1960, when Knopf merged with Random House, which was owned by the Knopfs' close friends Bennett Cerf and Donald Klopfer. Knopf retained complete editorial control for five years, and then gave up only his right to veto other editors' manuscript selections. The editorial departments of the two companies remain separate, and Knopf, Inc., retains its distinctive character. Knopf called the merger "a perfect marriage." Random House itself eventually became a division of Bertelsmann AG, a large multinational media company. The Knopf imprint remains in existence. Blanche Knopf died in June 1966. Alfred remarried in April of the following year, to Helen Norcross Hedrick. He died of congestive heart failure on August 11, 1984, at his estate in Purchase, New York.
Personality
Among other authors he rejected were Sylvia Plath, Jack Kerouac, Anne Frank, George Orwell, Jorge Luis Borges, Vladimir Nabokov, Isaac Bashevis Singer and Anaïs Nin. He turned down an early novel by Ursula K. Le Guin but encouraged her to keep writing. This outspoken aspect of his character sometimes found voice in letters of complaint to hotels, restaurants, and stores that failed to meet his high standards. These letters grew increasingly frequent and more severe as he aged. One striking example is the six-year-long war of words he waged against the Eastman Kodak Company over a roll of lost film.