Statistics for occurrence #1 of “Ipswich” in chapter 17 of Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register:

...and Mr. Appleton was ordained Oct. 9, 1717. Dr. Increase Mather preached and gave the charge; Dr. Cotton Mather gave the right hand of Fellowship; and they, together with Rev. Messrs. John Rogers, of Ipswich , and Samuel Angier, of Watertown, imposed hands. Ministers and delegates of eleven churches in Boston, Charlestown, Watertown, Ipswich, Newton, Lexington, and Medford, were invited, says President...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Ipswich (United Kingdom) 19 5 5 1 0 user votes
Ipswich (Massachusetts, United States) 4 0 0 0 0 user votes
Ipswich (Queensland, Australia) 0 0 0 0 0 user votes
Ipswich (South Dakota, United States) 0 0 0 0 0 user votes
Ipswich (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.