« The National Cyclopaedia of American Biography », New York Public Library (consulté le ) : « This biographical dictionary of Americans is more comprehensive than the Dictionary of American Biography but lacks the scholarly approach and the bibliographies characteristic of the latter work. The entries in the National Cyclopaedia are unsigned and are largely based upon questionnaires and other information supplied by families of the biographees. Since this dictionary is not alphabetically arranged, access to the entries is conducted through the general index. While the focus of this work is on the deceased, volumes entitled "current" or "lettered" include individuals living at the time of compilation. Portraits are supplied throughout the set. ... »
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« The National Cyclopaedia of American Biography », Rutgers University, (consulté le ) : « The most extensive, and least scholarly, of the major biographical sets. Over 66,500 biographical entries based on questionnaires completed by individuals or their families. Includes many names not found elsewhere. »