Order of Battle - The Westport campaign

Union
Army of the Border - Major General Samuel R. Curtis
Blunt’s Division
Jennison’s Brigade
Moonlight’s Brigade
Blair’s Brigade
Ford’s Brigade

Dietzler’s Kansas State Militia
Grant’s Brigade
Sherry’s Brigade
Fishbeck’s Brigade
Scott’s Brigade (not engaged)

Department of the Missouri - Major General William S. Rosecrans
Pleasanton's Provisional Cavalry Division
Brown’s (Philip's) Brigade

McNeil’s Brigade

Sanborn’s Brigade
Winslow’s Brigade

16th Army Corps detachment - Major General A. J. Smith

First Division - Joseph J. Woods

2nd Brigade - Hubbard

3rd Brigade - Hill

Third Division - David Moore

1st Brigade - Kinny

2nd Brigade - Gilbert

3rd Brigade - Wolfe

Confederate
Army of Missouri - Major General Sterling Price

Fagan's Division

Cabell's Brigade
Dobbin's Brigade

Slemon's Brigade

McCray's Brigade

Marmaduke's Division
Clark’s Brigade
Freeman's Brigade

Shelby's Division
Thompson’s “Iron Brigade”
Jackman's Brigade

Tyler's Brigade