Papers, letters, memoranda, memorabilia, and manuscript music scores assembled by and related to the life and musical activities of Anton Seidl. The collection includes many letters from Cosima Wagner and her children addressed to Anton Seidl and his wife, the opera singer Auguste Kraus Seidl. There are also letters from Lilli Lehman, Edvard Grieg, Antonin Dvorak, Bronislaw Hubermann, Carl Goldmark, Maud Powell, Marianne Brandt, Felix Weingartner, Lyman Abbott, and many others. The letters are chiefly concerned with musical performances, composition, and related affairs. There are journals, diaries, and memoranda in Seidl's hand, as well as photographs and clippings relating to his conducting career. Also, twenty-seven manuscript scores of Seidl's orchestrations of various works.

Correspondence, manuscripts, diaries, commonplace books, drawings, photographs, and printed materials. The collection is a comprehensive documentation of the dramatist's career and includes manuscripts, typescripts, notes, and costume and scenic design for more than seventy of his plays and related writings; 31 diaries, commonplace books, and scrapbooks containing manuscript and typescript notes, travel sketches, original drawings, and photographs; and correspondence files including letters from Harley Granville-Barker, Sir Herbert Beerbohm-Tree, John Galsworthy, Booth Tarkington, and Thornton Wilder. Austin Strong's mother, Isobel Field, was the step-daughter of Robert Louis Stevenson. Consequently, the collection contains much Stevensoniana, including photographs and Isobel Field's letters from Western Samoa, where she was known as "Teuila." Also, correspondence and photographs relating to Cornwall Park, Auckland, New Zealand, which was designed by Austin Strong.

Dawn Powell (1896-1965) was an American author of novels, plays, and short stories. The collection includes address books, appointment books, books, clippings, correspondence, diaries, ephemera, family materials, manuscripts, notes, notebooks, photographs, programs, research files, reviews, scrapbooks, sketches and drawings.

The papers relate chiefly to the business, financial, real estate, military, civic and personal activities of Nicholas Fish. There are letters from various military figures concerning army provisions during the Revolution, letters relating to lands given to Fish for his services during the war, twenty letters from various individuals to George Clinton (1739-1812), and ten letters to DeWitt Clinton. The Hamilton Fish letters deal with business matters of his father, Nicholas, after his death. There are a few personal letters from several family members and a diary of Nicholas Fish from 1784. The documents consist of real estate and financial matters of the family as well as various petitions on matters of a civic nature

The George A. Plimpton Papers consist largely of personal and professional correspondence, financial and real estate records, personal diaries and albums, writings, and lectures produced by or for George Arthur Plimpton. But the Papers also contains not only the correspondence and records of Plimpton's colleagues at Ginn and Company, the publishing house that Plimpton led for decades, but also correspondence and records relating to the dozens of other institutions and organizations that Plimpton helped lead. In addition to extensive correspondence relating to Plimpton's collecting of rare books, manuscripts, and historical artifacts, the Papers also contain such diverse items as autographs of presidents, handwriting specimens, studies of medieval manuscripts, and documents relating to the American slave trade.

This collection documents the life, work and activism of Helen Quirini of Schenectady, New York. The collection represents Quirini's numerous activities and interests including her early work owning a local market with her brother, her 39 year employment for General Electric, her activism in unions during her employment and retirement, as well as her charitable activities where she pursued civil, housing, pension, women's and senior citizen's rights.

Correspondence, manuscripts, typescripts, research files, documents, printed materials, photographs, and memorabilia of Mr and Mrs Hough. Correspondence includes both personal and business letters, dealing with wildlife conservation, civic interests, and birding. There is some correspondence of George A. Hough, Sr., father of H.B. Hough, who was editor of the New Bedford MA Standard. Most of the correspondence is arranged alphabetically, by personal name or subject, out-going and in-coming filed together. Henry and Elizabeth Hough's correspondence, for which there are no in-coming or related letters, are filed chronologically. Cataloged correspondents include Calvin Coolidge, Max Eastman, Helen Keller, John F. Kennedy, Emily Post, and James Reston.

Correrspondence, manuscripts, notes, memoranda, documents, photographs and printed materials. In addition to personal correspondence and documents, there are files of Amnesty International, the human rights organization of which Morris was American Section chairman. Also included are notes and manuscripts of Morris' studies in Japanese literature and culture, particularly relating to his many books and translations. His interest in puzzles, and compilations of several volumes of them, are reflected in notes and correspondence. Among the major correspondence are Donald Keene, Anthony Powell, Sacheverell Sitwell and Arthur Waley

The correspondence, research, and teaching files of French-American cultural historian and Columbia University professor emeritus Jacques Barzun (1907-2012).

Jacques Judah Lyons, hazzan, rabbi and community leader, was born in Surinam and emigrated to Philadelphia in the early 1800s. Minister of the New York Congregation Shearith Israel for 38 years, he gathered extensive materials on early Jewish history in the United States, Canada and the West Indies. His papers include manuscripts, newspaper clippings, scrapbooks, notebooks, photographs and a Sansom ship's log book. Contains material relating to Jews in North and South America generally and more specifically to Congregation Shearith Israel and the Jews in New York, the Touro Synagogue and cemetery and the Jews in Newport, Rhode Island, Philadelphia and the West Indies. Also contains material relating to Jews in the wars of the United States, correspondence of the Jews with George Washington and items relating to Haym Salomon. Collection consists of manuscript material and five notebooks and three scrapbooks of Lyons. Contains also material not listed in calendar consisting of sermons by Lyons, a manuscript prayer book used in Surinam and a guide for religious ceremonies at Congregation Shearith Israel, as well as letters written during the Civil War period and correspondence relating to the personal life and career of Lyons.