Laura,

Seek out the book by Steven H. Newton called The Battle of Seven Pines published by Howard Publishing of Virginia. It has a full order of battle.

Cobb's Brigade was there as part of Lafayette McLaw's Division with the 16th Georgia included therein. Much of this command was the old Army of the Peninsula of John Magruder, now the Center Wing of the Army of Northern Virginia/Department of Northern Virginia.

Longstreet commanded the Left Wing and his old division was under Richard Anderson consisting of the brigades of Micah Jenkins (SC), James Kemper (VA), George Pickett (VA), Raleigh Colston (VA and NC), Cadmus Wilcox (AL and MS) and Roger Pryor (AL, LA).

Hope this helps.

Greg Biggs