The Sorosis records include by-laws, constitutions, minutes, membership lists, yearbooks, programs, reports, histories, speeches, writings, clippings, subject files, memorabilia, publications, printed material, and scrapbooks.

The Records document the club's advocacy of temperance, prison reform, and peace, as well as their programs in art, drama, education, and music. Included are bound copies of Executive Committee minutes (1884-1907, 1937-1965); and committee reports (1886-1947). There are also biographical materials, writings, and photographs of first president Jane C. Croly (1829-1901); material relating to the Women's Congress in New York City (1873-1877); and the Association for the Advancement of Women (established by Sorosis in 1873).

This collection is organized into eight series:

• I. MEETINGS, 1868-1965
• II. ADMINISTRATION AND ORGANIZATION, 1870-1985
• III. HISTORY, 1871-1973, n.d.
• IV. OFFICERS, 1894-1950
• V. MEMBERS, 1868-1975, n.d.
• VI. PUBLICATIONS, 1869-1966
• VII. RELATED ORGANIZATIONS, 1885-1937
• VIII. MEMORABILIA, 1880-1968