Statistics for occurrence #1 of “Unitarian” in chapter 18, page 321 of Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register:

...1872. 1869, 1870,Rev. Pliny Wood. Died 1873. 1871-1873,Rev. William P. Ray. 1874, 1875,Rev. Charles T. Johnson, W. U. 1863. 1876,Rev. George W. Mansfield, W. U. 1858. Third Congregational ( Unitarian ).—The Third Congregational Society was incorporated June 16, 1827, and in the course of the same year erected a substantial brick meeting-house, which is yet standing at the northwest corner o...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Unitarian 321 4 1 0 0 user votes
English Unitarian 20 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.