Statistics for occurrence #1 of “Essex County” in chapter 13 of Historic leaves, volume 8, April, 1909 - January, 1910:

...9. Goldsboro, 39. Goodhue, Eliza, 10. Governor John Winthrop and His Ten Hills Farm, 61. Grand Army of the Republic, 68. Gray's Elegy, 76. Gray, Rev. Francis A., 63. Great Bromley, Essex County , Eng., 1. Green, Marshal-General, John, 53. Grover, Benjamin, 9. Grover, Elizabeth, 9. Grover, General, 65, 66, 68. Hague, Rev., William, 11. Hale, Sarah Josepa (Buell), 31. Haley, Mary ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Essex County (Massachusetts, United States) 146 4 8 0 0 user votes
Essex County (Virginia, United States) 273 0 41 0 0 user votes
Essex County (New York, United States) 46 0 14 0 0 user votes
Essex County (New Jersey, United States) 0 0 0 0 0 user votes
Essex County (Vermont, 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.