Statistics for occurrence #1 of “Rec” in chapter 8 of Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register:

...rchard. Wharf. division of Shawshine lands. incorporation of Billerica Notwithstanding Mr. Shepard and his associates here found sufficient for themselves and their company, and appear by the Rec ords to have enjoyed temporal prosperity, as indicated in the foregoing chapter, they were not fully satisfied, but seriously contemplated a removal to Connecticut. To such removal they were advised...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Charles Rec 222 192 0 0 0 user votes
Rec 28 0 0 0 0 user votes
Albany Rec 2 0 0 0 0 user votes
Edward Rec 2 0 0 0 0 user votes
Frederick Rec 2 0 0 0 0 user votes
Lexington Rec 2 0 0 0 0 user votes
Medford Rec 2 0 0 0 0 user votes
R. I. Rec 2 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.