Statistics for occurrence #1 of “Portland” in chapter 12.90 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War. Volume 4.:

...tenant Charles W. Read. Proceeding northward on a roving cruise in the Clarence, Read captured, during the month of June, five vessels off the coast of the United States, between the Chesapeake and Portland . The fifth was the schooner Tacony, and finding her better suited to his purpose, Read burned the Clarence, after transferring his guns and men to the new cruiser. His four other prizes were also...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Portland (Maine, United States) 596 2 198 0 0 user votes
Portland (Oregon, United States) 65 0 29 0 0 user votes
Portland (Michigan, United States) 4 0 0 0 0 user votes
Portland (United Kingdom) 4 0 2 0 0 user votes
Portland (Alabama, United States) 1 0 1 0 0 user votes
Portland (Kentucky, United States) 1 0 1 0 0 user votes
Portland (Arkansas, United States) 0 0 0 0 0 user votes
Portland (Barbados) 0 0 0 0 0 user votes
Portland (Colorado, United States) 0 0 0 0 0 user votes
Portland (Colorado, United States) 0 0 0 0 0 user votes
Portland (Florida, United States) 0 0 0 0 0 user votes
Portland (Georgia, United States) 0 0 0 0 0 user votes
Portland (Illinois, United States) 0 0 0 0 0 user votes
Portland (Indiana, United States) 0 0 0 0 0 user votes
Portland (Iowa, United States) 0 0 0 0 0 user votes
Portland (Jamaica) 0 0 0 0 0 user votes
Portland (Kentucky, United States) 0 0 0 0 0 user votes
Portland (New South Wales, Australia) 0 0 0 0 0 user votes
Portland (New York, United States) 0 0 0 0 0 user votes
Portland (New York, United States) 0 0 0 0 0 user votes
Portland (New Zealand) 0 0 0 0 0 user votes
Portland (North Dakota, United States) 0 0 0 0 0 user votes
Portland (Ohio, United States) 0 0 0 0 0 user votes
Portland (Texas, United States) 0 0 0 0 0 user votes
Portland (Victoria, Australia) 0 0 0 0 0 user votes
Portland (Wisconsin, United States) 0 0 0 0 0 user votes
Portland (Wisconsin, United States) 0 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.