Author:William Pitt Preble Longfellow
|←Author Index: Lo||William Pitt Preble Longfellow
 Brother of Alexander Wadsworth Longfellow, Jr.
Fellow of the American Institute of Architects. Editor of the American Architect. Author of Cyclopaedia of Architecture in Italy, Greece and the Levant; &c.|
This author wrote articles for the 1911 Encyclopædia Britannica.
Articles attributed to this author are designated in EB1911 by the initials "W. P. P. L."
- Cambridge Historical Society (Mass.) (1917). "WILLIAM PITT PREBLE LONGFELLOW". The Cambridge Historical Publications, 8-10, Proceedings Jan. 26, 1915 - Oct. 26, 1916. pp. pp. 51–52.
- "LONGFELLOW, William Pitt Preble". Who's Who in New England,. vol. 1: p. 601. 1909.