Official Records of the Rebellion: Vol 11, Chap 23, Part 1: Peninsula Campaign: Reports of B. J. Allen [Allen Pinkerton], Chief of Secret Service Division.

[156]

No. 13.

Reports of B. J. Allen [Allen Pinkerton], Chief of Secret Service Division.

264-265	Report of the defences of Yorktown and Gloucester Point in October 1861
266-268	Report of the defences of the Yorktown Peninsula, February 1862
268	Report of defences of Yorktown, 3 May 1862
269	Report of enemy troop numbers around Richmond, 26 June 1862
269-270	Report of enemy troop numbers from the start of the Seven Days' Battles to 14 August 1862
270-272	Inclosure included with above report, giving various estimates of enemy strength at Richmond and with Jackson

Official Records of the Rebellion: Volume Eleven, Chapter 23, Part 1: Peninsular Campaign: Reports, pp.264-272

web page Rickard, J (20 June 2006), https://www.historyofwar.org/sources/acw/officialrecords/vol011chap023part1/00013_00index.html

Official Records of the Rebellion