Statistics for occurrence #1 of “Seneca, Md.” in year 1863, month June, day 11 of Rebellion Record: a Diary of American Events, Diary from December 17, 1860 - April 30, 1864:

...ranger, and A. Baird. A party of rebel cavalry, numbering about two hundred and fifty, crossed the Potomac River this morning,, and attacked a company of the Sixth Michigan cavalry stationed at Seneca, Md. The Nationals being outnumbered, gradually fell back, fighting, to within three miles of Poolesville, when the enemy retired across the river, after burning the camp at Seneca. The Unionists lost f...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Seneca, Md. (Maryland, United States) 89 7 7 1 0 user votes

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