Morrow's (Albert P.) Cavalry. See Pennsylvania Troops, 6th Regiment.

Morrow's (B. Mortimer) Infantry. See Pennsylvania Troops, 205th Regiment.

Mosby's (John S.) Cavalry. See Virginia Troops, Confederate, 43rd Battalion.

Moulton's (Albert P.) Infantry. See Pennsylvania Troops, 54th Regiment.

Muhlenberg's (Charles P.) Artillery. See Union Troops, Regulars, 5th Regiment, Battery A.

Mulholland's (St. Clair A.) Infantry. See Pennsylvania Troops, 116th Regiment.

Murdock's (William) Infantry. See Connecticut Troops, 14th Regiment.

Murray's (John B.) Infantry. See New York Troops, 148th Regiment.

Myers' (Daniel) Infantry. See New York Troops, 187th Regiment.

Myrick's (John B.) Artillery. See Union Troops, Regulars, 3rd Regiment, Battery E.

Nash's (Edwin A.) Infantry. See Georgia Troops, 4th Regiment.

Neblett Heavy Artillery. See Virginia Troops, Confederate.

Neely's (Robert) Infantry. See Maryland Troops, Union, 1st Regiment.

Negus' (Edward L.) Cavalry. See Michigan Troops, 1st Regiment.

Nelson Artillery. See Virginia Troops, Confederate.

Nelson Artillery, Numbers 2. See Virginia Troops, Confederate.

Newberry's (Walter C.) Cavalry. See New York Troops, 24th Regiment.

New York 1st Dragoons, Cavalry. See New York Troops, 19th Regiment.

New York 1st Mounted Rifles. See New York Troops, 7th Regiment, Cavalry.

New York 20th Militia, Infantry. See New York Troops, 80th Regiment.

New York 69th National Guard, Artillery. See New York Troops, 182nd Regiment, Infantry.

Nichols' (Asahel W.) Sharpshooters. See Michigan Troops, 1st Regiment.

Nichols' (Edwin) Infantry. See New York Troops, 100th Regiment.

Nieman's (George W.) Cavalry. See Pennsylvania Troops, 18th Regiment.

Noggle's (Dorman L.) Artillery. See Wisconsin Troops, 4th Battery.

Norfolk Blues, Artillery. See Virginia Troops, Confederate.

Norment's (George M.) Infantry. See North Carolina Troops, Confederate, 34th Regiment.

Norton's (Petez L.) Infantry. See Pennsylvania Troops, 191st Regiment.

Oakman's (Hiram A.) Infantry. See Union Troops, Colored, 30th Regiment.

O'Brien's (John) Heavy Artillery. See Connecticut Troops, 1st Regiment, Battery L.

O'Keefe's (Keefe S.) Engineers. See New York Troops, 15th Regiment.

Olcott's (Egbert) Infantry. See New York Troops, 121st Regiment.

Olcott's (Egbert W.) Artillery. See Union Troops, Regulars, 1st Regiment, Battery M.

Oliver's (William H.) Cavalry. See New York Troops, 4th Regiment.

Oneida Cavalry. See New York Troops.

O'Neill's (Henry) Infantry. See Pennsylvania Troops, 118th Regiment.

Orange Artillery. See Virginia Troops, Confederate.

Orr's (James L.) Infantry. See South Carolina Troops, 1st Regiment, Rifles.

Otey Artillery. See Virginia Troops, Confederate.

Overmyer's (John B.) Infantry. See Pennsylvania Troops, 11th Regiment.

Owen's (Edward) Artillery. See Washington (La.) Artillery, post, 1st Battery.

Owens' (Wesley) Cavalry. See Ohio Troops, 8th Regiment.

Palmer's (Charles S.) Infantry. See Massachusetts Troops, 19th Regiment.

Palmetto Artillery, Numbers 2. See South Carolina Troops.

Palmetto Sharpshooters, Infantry. See South Carolina Troops.

Parker's (Ezra K.) Artillery. See Rhose Island Troops, 1st Regiment, Battery E.

Parker's (William W.) Artillery. See Virginia Troops, Confederate.

Parr's (John G.) Infantry. See Pennsylvania Troops, 139th Regiment.

Parsons' (Augustin N.) Artillery. See New Jersey Troops, 1st Battery.

Partridge's (Benjamin F.) Infantry. See Michigan Troops, 16th Regiment.

Patchell's (James) Infantry. See Pennsylvania Troops, 102nd Regiment.