Statistics for occurrence #1 of “McClellan” in chapter 5.13 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War: The Opening Battles. Volume 1.:

...f the battle was sufficient notice that he had gained the summit and was engaged; and he was, in fact, left to win his own battle or to get out of his embarrassment as he could. Toward evening McClellan began to cut a road for artillery to a neighboring height, from which he hoped his twelve guns would make Pegram's position untenable; but his lines were withdrawn again beyond Roaring Creek at night...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
George B. McClellan 12,345 143 123 3 0 user votes
McClellan 7,391 0 1,587 0 0 user votes
G. B. McClellan 1,629 0 17 0 0 user votes
George Brinton McClellan 982 0 54 0 0 user votes
H. B. McClellan 881 0 31 0 0 user votes
Ashland McClellan 372 0 0 0 0 user votes
Gen McClellan 289 0 1 0 0 user votes
Carswell McClellan 181 0 1 0 0 user votes
Henry B. McClellan 160 0 6 0 0 user votes
Monday McClellan 106 0 0 0 0 user votes
H. McClellan 96 0 0 0 0 user votes
George McClellan 94 0 2 0 0 user votes
Richmond McClellan 91 0 1 0 0 user votes
Ely McClellan 65 0 1 0 0 user votes
Packenham McClellan 61 0 1 0 0 user votes
Arthur McClellan 46 0 4 0 0 user votes
Geneeal McClellan 46 0 0 0 0 user votes
George R. McClellan 46 2 0 0 0 user votes
Henry Brainerd McClellan 34 0 0 0 0 user votes
George W. McClellan 30 0 0 0 0 user votes
Samuel A. McClellan 20 0 2 0 0 user votes
John B. McClellan 18 0 0 0 0 user votes
Henry McClellan 16 0 0 0 0 user votes
J. H. B. McClellan 13 0 1 0 0 user votes
B. McClellan 12 0 0 0 0 user votes
Geo B. McClellan 12 0 0 0 0 user votes
R. McClellan 12 0 0 0 0 user votes
I. B. McClellan 11 0 1 0 0 user votes
Antietam McClellan 10 0 0 0 0 user votes
Horatio W. McClellan 8 0 0 0 0 user votes
J. F. McClellan 8 0 2 0 0 user votes
John McClellan 8 0 0 0 0 user votes
Abbot Lawrence Burnside McClellan 6 0 0 0 0 user votes
C. H. McClellan 6 0 0 0 0 user votes
Maj McClellan 6 0 0 0 0 user votes
Adam McClellan 4 0 0 0 0 user votes
G. R. McClellan 4 0 0 0 0 user votes
Geo McCLELLAN 4 0 2 0 0 user votes
H. W. Mcclellan 4 0 0 0 0 user votes
Jonathan McClellan 4 0 0 0 0 user votes
Joseph W. McClellan 4 0 0 0 0 user votes
William McClellan 4 0 0 0 0 user votes
B. F. McClellan 3 0 1 0 0 user votes
William B. McClellan 3 0 1 0 0 user votes
Bucknerand McClellan 2 0 0 0 0 user votes
E. J. McClellan 2 0 0 0 0 user votes
G. E. McCLELLAN 2 0 0 0 0 user votes
James McClellan 2 0 0 0 0 user votes
M. G. McCLELLAN 2 0 0 0 0 user votes
Robert McClellan 2 0 0 0 0 user votes
Alden McClellan 1 0 1 0 0 user votes
E. G. McClellan 1 0 1 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.