Statistics for occurrence #1 of “Pettigrew” in chapter 4.55 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War. Volume 3.:

... Pettigrew
The brigades of Harrow, Webb, and Hall, of Gibbon's division, Hancock's corps, occupied the crest on Cemetery Ridge on ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† J. Johnston Pettigrew 209 56 7 4 0 user votes
Pettigrew 658 0 130 0 0 user votes
J. J. Pettigrew 277 0 15 0 0 user votes
James Johnston Pettigrew 99 0 5 0 0 user votes
J. Johnson Pettigrew 52 0 8 0 0 user votes
Johnston Pettigrew 28 0 2 0 0 user votes
William Pettigrew 22 0 2 0 0 user votes
James L. Pettigrew 10 0 0 0 0 user votes
Mary Pettigrew 9 0 1 0 0 user votes
Ebenezer Pettigrew 7 0 1 0 0 user votes
Gen Pettigrew 6 0 0 0 0 user votes
Mary L. Pettigrew 6 0 2 0 0 user votes
William S. Pettigrew 6 0 2 0 0 user votes
Johnson J. Pettigrew 5 0 1 0 0 user votes
J. L. Pettigrew 4 0 2 0 0 user votes
James Pettigrew 4 0 0 0 0 user votes
James Johnson Pettigrew 4 0 0 0 0 user votes
Charles Pettigrew 2 0 0 0 0 user votes
David Pettigrew 2 0 0 0 0 user votes
George Pettigrew 2 0 2 0 0 user votes
J. Pettigrew 2 0 2 0 0 user votes
J. C. Pettigrew 2 0 0 0 0 user votes
John Pettigrew 2 0 0 0 0 user votes
M. L. Pettigrew 2 0 0 0 0 user votes
Richard F. Pettigrew 2 0 0 0 0 user votes
Samuel G. Pettigrew 2 0 0 0 0 user votes
W. J. Pettigrew 2 0 2 0 0 user votes
A. H. Pettigrew 1 0 1 0 0 user votes
D. M. Pettigrew 1 0 1 0 0 user votes
J. A. Pettigrew 1 0 1 0 0 user votes
R. H. Pettigrew 1 0 1 0 0 user votes
William B. Pettigrew 1 0 1 0 0 user votes
William J. Pettigrew 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.