Statistics for occurrence #1 of “James island” in chapter 24, page 838 of Brigadier-General Ellison Capers, Confederate Military History, a library of Confederate States Military History: Volume 5, South Carolina:

...continued in this duty until the secession of the State. He was then transferred to Castle Pinckney, where he was with his command during the siege of Fort Sumter, also serving on John's island and James island . In February, 1862, he and his company, then consisting of 250 men, were mustered into the Confederate States
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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† James Island (South Carolina, United States) 2,030 218 142 0 0 user votes
James Island (Maryland, United States) 2 0 0 0 0 user votes
James Island (Alaska, United States) 0 0 0 0 0 user votes
James Island (Canada) 0 0 0 0 0 user votes
James Island (Florida, United States) 0 0 0 0 0 user votes
James Island (Gambia) 0 0 0 0 0 user votes
James Island (Maryland, United States) 0 0 0 0 0 user votes
James Island (Michigan, United States) 0 0 0 0 0 user votes
James Island (Ohio, United States) 0 0 0 0 0 user votes
James Island (Washington, United States) 0 0 0 0 0 user votes
James Island (Washington, United States) 0 0 0 0 0 user votes
James Island (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.