Columbia subject headings:
Documents on microfilm.
McCook, John James, 1843-1927--Archives.
McCook, John James, 1843-1927.
Public welfare--History--Sources.
Social reformers--United States--Correspondence.
Harvard subject headings:
Manuscripts on microfilm--Catalogs.
Manuscripts, American--Connecticut--Hartford--Microform catalogs.
McCook, John James, 1843-1927--Manuscripts--Microform catalogs.
Public welfare--History--Sources--Catalogs.
Princeton subject headings:
McCook, John James, 1843-1927--Archives--Indexes.
McCook, John James, 1843-1927. Social reform papers of John James McCook--Indexes.
Public welfare--United States--History--Sources--Indexes.
Social reformers--United States--Correspondence--Indexes.