Department of Northeastern Virginia

The Department of Northeastern Virginia was a Union Military Department constituted on May 27, 1861. It consisted of the portion of Virginia East of the Alleghany Mountains and north of the James River, but not including Fort Monroe and the area 60 miles around it. It was merged into the Department of the Potomac on July 25, 1861.ACWR 0271 and 0272 say the end date is August 17, but ACWR 0255 says July 25. This date is more consistent with the other transfers, so it has been left this way for now.
== Statistical Information ==
* Begin: May 27, 1861
* End: July 25, 1861 (Merged into Department of the Potomac)
== Roster of Units ==
COMMANDERS
* May 28, 1861 - July 25, 1861: Irvin McDowell (Major General)
Divisions 	Brigades 	Regiments or Smaller Units 	Dates of Service 	Previous Unit 	Next Unit
1st DivisionDaniel Tyler (Brigadier General) 	 	 	 	 	
1st DivisionDaniel Tyler (Brigadier General) 	1st BrigadeE.D. Keyes (Colonel, U.S. Army) 	 	 	 	
1st DivisionDaniel Tyler (Brigadier General) 	1st BrigadeE.D. Keyes (Colonel, U.S. Army) 	2nd Maine Infantry 	June 1861 - August 1861	From new organization 	(I) Dept. Potomac / Ft. Corcoran
1st DivisionDaniel Tyler (Brigadier General) 	1st BrigadeE.D. Keyes (Colonel, U.S. Army) 	1st Connecticut Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
1st DivisionDaniel Tyler (Brigadier General) 	1st BrigadeE.D. Keyes (Colonel, U.S. Army) 	2nd Connecticut Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
1st DivisionDaniel Tyler (Brigadier General) 	1st BrigadeE.D. Keyes (Colonel, U.S. Army) 	3rd Connecticut Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
1st DivisionDaniel Tyler (Brigadier General) 	1st BrigadeE.D. Keyes (Colonel, U.S. Army) 	Varian's New York State Militia Battery Light Artillery 	June 1861 - August 1861	From new organization 	No change to muster out
1st DivisionDaniel Tyler (Brigadier General) 	2nd BrigadeR.C. Schenck (Brigadier General) 	 	 	 	
1st DivisionDaniel Tyler (Brigadier General) 	2nd BrigadeR.C. Schenck (Brigadier General) 	(I) 1st Ohio Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
1st DivisionDaniel Tyler (Brigadier General) 	2nd BrigadeR.C. Schenck (Brigadier General) 	(I) 2nd Ohio Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
1st DivisionDaniel Tyler (Brigadier General) 	2nd BrigadeR.C. Schenck (Brigadier General) 	82nd New York Infantry 	June 1861 - August 1861	From new organization 	(I) Dept. Potomac / Ft. Corcoran
1st DivisionDaniel Tyler (Brigadier General) 	2nd BrigadeR.C. Schenck (Brigadier General) 	2nd United States Artillery / Battery B 	June 1861 - August 1861	From Regular Army garrison 	To Dept. Potomac
1st DivisionDaniel Tyler (Brigadier General) 	3rd BrigadeWilliam Sherman (Colonel, U.S. Army) 	 	 	 	
1st DivisionDaniel Tyler (Brigadier General) 	3rd BrigadeWilliam Sherman (Colonel, U.S. Army) 	(I) 13th New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Ft. Corcoran
1st DivisionDaniel Tyler (Brigadier General) 	3rd BrigadeWilliam Sherman (Colonel, U.S. Army) 	69th New York Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
1st DivisionDaniel Tyler (Brigadier General) 	3rd BrigadeWilliam Sherman (Colonel, U.S. Army) 	79th New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Smith's Brigade
1st DivisionDaniel Tyler (Brigadier General) 	3rd BrigadeWilliam Sherman (Colonel, U.S. Army) 	2nd Wisconsin Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Ft. Corcoran
1st DivisionDaniel Tyler (Brigadier General) 	3rd BrigadeWilliam Sherman (Colonel, U.S. Army) 	3rd United States Artillery / Battery E 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Ft. Corcoran
1st DivisionDaniel Tyler (Brigadier General) 	4th BrigadeI.B. Richardson (Colonel, 2nd Michigan Infantry) 	 	 	 	
1st DivisionDaniel Tyler (Brigadier General) 	4th BrigadeI.B. Richardson (Colonel, 2nd Michigan Infantry) 	1st Massachusetts Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Hooker's Brigade
1st DivisionDaniel Tyler (Brigadier General) 	4th BrigadeI.B. Richardson (Colonel, 2nd Michigan Infantry) 	(I) 12th New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Richardson's Brigade
1st DivisionDaniel Tyler (Brigadier General) 	4th BrigadeI.B. Richardson (Colonel, 2nd Michigan Infantry) 	2nd Michigan Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Richardson's Brigade
1st DivisionDaniel Tyler (Brigadier General) 	4th BrigadeI.B. Richardson (Colonel, 2nd Michigan Infantry) 	(I) 3rd Michigan Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Richardson's Brigade
1st DivisionDaniel Tyler (Brigadier General) 	4th BrigadeI.B. Richardson (Colonel, 2nd Michigan Infantry) 	1st United States Artillery / Battery G 	June 1861 - August 1861	From Regular Army garrison 	To Dept. Potomac / Richardson's Brigade
1st DivisionDaniel Tyler (Brigadier General) 	4th BrigadeI.B. Richardson (Colonel, 2nd Michigan Infantry) 	2nd United States Artillery / Battery M 	June 1861 - August 1861	From Regular Army garrison 	To Dept. Potomac / Franklin's Brigade
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	 	 	 	 	
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	1st BrigadeAndrew Porter (Colonel, U.S. Army) 	 	 	 	
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	1st BrigadeAndrew Porter (Colonel, U.S. Army) 	8th New York State Militia Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	1st BrigadeAndrew Porter (Colonel, U.S. Army) 	14th New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Sherman's Brigade
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	1st BrigadeAndrew Porter (Colonel, U.S. Army) 	84th New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Keye's Brigade
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	1st BrigadeAndrew Porter (Colonel, U.S. Army) 	27th New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Heintzelman's Brigade
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	1st BrigadeAndrew Porter (Colonel, U.S. Army) 	2nd United States Regular Infantry / Companies C and G 	June 1861 - August 1861	From Regular Army garrison 	To City Guard Washington
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	1st BrigadeAndrew Porter (Colonel, U.S. Army) 	3rd United States Regular Infantry / Companies B, D, G, H, and K 	June 1861 - August 1861	From Regular Army garrison 	To City Guard Washington
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	1st BrigadeAndrew Porter (Colonel, U.S. Army) 	8th United States Regular Infantry / Company G 	June 1861 - August 1861	From Regular Army garrison 	To Dept. Potomac / Provost Guard
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	1st BrigadeAndrew Porter (Colonel, U.S. Army) 	1st United States Cavalry / Companies A and E 	June 1861 - August 1861	From Regular Army garrison 	To Dept. Potomac / Cavalry Reserve
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	1st BrigadeAndrew Porter (Colonel, U.S. Army) 	3rd United States Cavalry / Companies B, E, G, and INo mention of this in unit histories on ACWR 1690-1691. Most companies still in New Mexico.	June 1861 - August 1861	From Regular Army garrison 	To Dept. Potomac / Cavalry Reserve
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	1st BrigadeAndrew Porter (Colonel, U.S. Army) 	2nd United States CavalryUnit listed as 2nd United States Dragoons / Company K in Dyer 	June 1861 - August 1861	From Regular Army garrison 	To Dept. Potomac / Cavalry Reserve
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	1st BrigadeAndrew Porter (Colonel, U.S. Army) 	United States Marine Battalion / Companies A and E 	June 1861 - August 1861	From Regular Navy garrison 	To U.S. Navy
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	2nd BrigadeAmbrose Burnside (Colonel, 1st Rhode Island Infantry) 	 	 	 	
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	2nd BrigadeAmbrose Burnside (Colonel, 1st Rhode Island Infantry) 	2nd New Hampshire Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Hooker's Brigade
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	2nd BrigadeAmbrose Burnside (Colonel, 1st Rhode Island Infantry) 	1st Rhode Island Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	2nd BrigadeAmbrose Burnside (Colonel, 1st Rhode Island Infantry) 	2nd Rhode Island Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Couch's Brigade
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	2nd BrigadeAmbrose Burnside (Colonel, 1st Rhode Island Infantry) 	71st New York Infantry* Including 2 Howitzer Companies 	June 1861 - August 1861	From new organization 	No change to muster out
2ND DIVISIONMay 28, 1861 - July 25, 1861:David Hunter (Colonel, U.S. Army)	2nd BrigadeAmbrose Burnside (Colonel, 1st Rhode Island Infantry) 	1st Rhode Island Light Artillery Battery 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Hooker's Brigade
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	 	 	 	 	
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	1st BrigadeW.B. Franklin (Colonel, U.S. Army) 	 	 	 	
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	1st BrigadeW.B. Franklin (Colonel, U.S. Army) 	(I) 5th Massachusetts Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	1st BrigadeW.B. Franklin (Colonel, U.S. Army) 	11th Massachusetts Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Hooker's Brigade
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	1st BrigadeW.B. Franklin (Colonel, U.S. Army) 	1st Minnesota Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Stone's Brigade
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	1st BrigadeW.B. Franklin (Colonel, U.S. Army) 	1st United States Artillery / Battery L 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Stone's Brigade
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	2nd BrigadeMay 28, 1861 - July 21, 1861:O.B. Wilcox (Colonel, 1st Michigan Infantry)July 21, 1861 - August 1861:J.H.H. Ward (Colonel, 38th New York Infantry)	 	 	 	
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	2nd BrigadeMay 28, 1861 - July 21, 1861:O.B. Wilcox (Colonel, 1st Michigan Infantry)July 21, 1861 - August 1861:J.H.H. Ward (Colonel, 38th New York Infantry)	11th New York Infantry 	June 1861 - August 1861	From new organization 	To New York
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	2nd BrigadeMay 28, 1861 - July 21, 1861:O.B. Wilcox (Colonel, 1st Michigan Infantry)July 21, 1861 - August 1861:J.H.H. Ward (Colonel, 38th New York Infantry)	38th New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Howard's Brigade
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	2nd BrigadeMay 28, 1861 - July 21, 1861:O.B. Wilcox (Colonel, 1st Michigan Infantry)July 21, 1861 - August 1861:J.H.H. Ward (Colonel, 38th New York Infantry)	(I) 1st Michigan Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	2nd BrigadeMay 28, 1861 - July 21, 1861:O.B. Wilcox (Colonel, 1st Michigan Infantry)July 21, 1861 - August 1861:J.H.H. Ward (Colonel, 38th New York Infantry)	(I) 4th Michigan Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Sherman's Brigade
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	2nd BrigadeMay 28, 1861 - July 21, 1861:O.B. Wilcox (Colonel, 1st Michigan Infantry)July 21, 1861 - August 1861:J.H.H. Ward (Colonel, 38th New York Infantry)	3rd United States Artillery / Battery D 	June 1861 - August 1861	From Regular Army Garrison 	To Dept. Potomac / Kearney's Brigade
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	3rd BrigadeO.O. Howard (Colonel, 3rd Maine Infantry) 	 	 	 	
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	3rd BrigadeO.O. Howard (Colonel, 3rd Maine Infantry) 	3rd Maine Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Howard's Brigade
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	3rd BrigadeO.O. Howard (Colonel, 3rd Maine Infantry) 	4th Maine Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Howard's Brigade
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	3rd BrigadeO.O. Howard (Colonel, 3rd Maine Infantry) 	5th Maine Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Heintzelman's Brigade
3RD DIVISIONS.P. Heintzelman (Colonel, U.S. Army) 	3rd BrigadeO.O. Howard (Colonel, 3rd Maine Infantry) 	2nd Vermont Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Smith's Brigade
4TH DIVISION (RESERVE)Theodore Runyon (Brigadier General) 	 	 	 	 	
4TH DIVISION (RESERVE)Theodore Runyon (Brigadier General) 	1st BrigadeNo specific Commander 	 	 	 	
4TH DIVISION (RESERVE)Theodore Runyon (Brigadier General) 	1st BrigadeNo specific Commander 	(I) 1st New Jersey Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
4TH DIVISION (RESERVE)Theodore Runyon (Brigadier General) 	1st BrigadeNo specific Commander 	(I) 2nd New Jersey Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
4TH DIVISION (RESERVE)Theodore Runyon (Brigadier General) 	1st BrigadeNo specific Commander 	(I) 3rd New Jersey Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
4TH DIVISION (RESERVE)Theodore Runyon (Brigadier General) 	1st BrigadeNo specific Commander 	(I) 4th New Jersey Infantry 	June 1861 - August 1861	From new organization 	No change to muster out
4TH DIVISION (RESERVE)Theodore Runyon (Brigadier General) 	2nd BrigadeNo specific Commander 	 	 	 	
4TH DIVISION (RESERVE)Theodore Runyon (Brigadier General) 	2nd BrigadeNo specific Commander 	(II) 1st New Jersey Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Kearney's Brigade
4TH DIVISION (RESERVE)Theodore Runyon (Brigadier General) 	2nd BrigadeNo specific Commander 	(II) 2nd New Jersey Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Kearney's Brigade
4TH DIVISION (RESERVE)Theodore Runyon (Brigadier General) 	2nd BrigadeNo specific Commander 	(II) 3rd New Jersey Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Kearney's Brigade
4TH DIVISION (RESERVE)Theodore Runyon (Brigadier General) 	2nd BrigadeNo specific Commander 	41st New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Sherman's Brigade
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	 	 	 	 	
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	1st BrigadeLouis Blenker (Colonel, 8th New York Infantry) 	 	 	 	
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	1st BrigadeLouis Blenker (Colonel, 8th New York Infantry) 	8th New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Blenker's Brigade
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	1st BrigadeLouis Blenker (Colonel, 8th New York Infantry) 	29th New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Blenker's Brigade
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	1st BrigadeLouis Blenker (Colonel, 8th New York Infantry) 	39th New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Blenker's Brigade
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	1st BrigadeLouis Blenker (Colonel, 8th New York Infantry) 	27th Pennsylvania Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Blenker's Brigade
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	1st BrigadeLouis Blenker (Colonel, 8th New York Infantry) 	3rd United States Artillery / Battery A 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Heintzelman's Brigade
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	1st BrigadeLouis Blenker (Colonel, 8th New York Infantry) 	Bookwood's (Independent) Light Artillery Battery 	June 1861 - August 1861	From 8th and 29th New York Infantries	To Dept. Potomac / Blenker's BrigadeAfter reorganization, this unit is mustered in again as the (I) 2nd New York (Independent) Light Artillery Battery.
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	2nd BrigadeThomas A. Davis (Colonel, U.S. Army) 	 	 	 	
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	2nd BrigadeThomas A. Davis (Colonel, U.S. Army) 	16th New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Heintzelman's Brigade
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	2nd BrigadeThomas A. Davis (Colonel, U.S. Army) 	18th New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Franklin's Brigade
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	2nd BrigadeThomas A. Davis (Colonel, U.S. Army) 	31st New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Franklin's Brigade
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	2nd BrigadeThomas A. Davis (Colonel, U.S. Army) 	32nd New York Infantry 	June 1861 - August 1861	From new organization 	To Dept. Potomac / Franklin's Brigade
5TH DIVISIOND.S. Miles (Colonel, U.S. Army) 	2nd BrigadeThomas A. Davis (Colonel, U.S. Army) 	2nd United States Artillery / Battery G 	June 1861 - August 1861	From Regular Army garrison 	To Dept. Potomac / Kearney's Brigade
== Notes ==
== Sources ==
* (Pages 255, 271-272)
N