The Helm mss., 1693-1965, consist of operatic scores largely in the hands of copyists, works of Mme Laure (Cinthie Montalant) Cinti-Damoreau, 1801-1863, singer and composer, and documents connected with the opera in Bologna, collected by Everett Helm, 1913-1999, composer and musicologist of New York and Asolo, Italy.
The Kerlin mss., 1798-1925, consists of the papers of Mrs. Harriet Barton (Kerlin) Bentley, (Mrs. Frederick James Bentley), and members of three generations of her family.
The Cinti-Damoreau mss., 1827-1856, consists of letters and a contract of singer and composer Mme. Laure (Cinthie Montalant)Cinti-Damoreau, 1801-1863, who resided much of her life in Paris, France.
The Cinti-Damoreau mss. II, 1844, consists of an autograph letter signed by Mme. Laure (Cinthie Montalant) Cinti-Damoreau, addressed to "O. Moran Esq."
The Williams, J.S. mss., 19th cent. consist of reminiscences of John Samuel Williams, 1857-1940, Indiana schoolteacher, titled Skeletons from a Homespunner's Closet.
The Walker, Barclay mss., 1859-1927, consists of musical compositions by Barclay Walker, 1859-1927, an Indiana composer, and by his daughter, Mary Josephine (Walker) Wolff.