Adams, John Quincy, 1st Lt., 1st Cav.
  Company officer, Troop F, but did not serve as such.
  AAAG, Dist. of the Lakes, Camp Warner, beginning of war.
  Sig. officer, Gillem's Camp & 2d battle of Stronghold.
  AAG for the command, latter May and early June.

Anderson, Harry Reuben, 2d Lt., 4th Art.
  ADC to General Canby.

Bacon, George Robert, 2d Lt., 1st Cav.
  Company officer, Troop K.
  2d battle of Stronghold
  In 3d Cav. Squadron, pursuit of Captain Jack.

Bancroft, Eugene Adolphus, Capt., 4th Art.
  Assumed command of Battery A, May 29.

Bentley, Edwin, Asst. Surg., USA.
  Took charge of general field hospital, May 25.

Bernard, Reuben Frank, Capt., 1st Cav.
  CO, Troop G, was Co, Camp Bidwell.
  1st battle of Stronghold, in charge of force on east side.
  2nd battle of Stronghold, took sick second day, Apr. 16.
  Relieved from expedition Apr. 22, because of illness.

Biddle, James, Maj., 6th Cav.
  CO, Troop K, 1st Cav. (Promoted to 6th Cav. while enroute)
  2d battle of Stronghold - role unknown.
  Left lava beds because of illness, date unknown.

Boutelle, Frazier Augustus, 2d Lt., 1st Cav.
  Company officer, Troop B.
  Battle of Lost River, Nov. 29.
  1st battle of Stronghold.
  2d battle of Stronghold.
  Battle of Sorass Lake.
  In 3d Cav. Squadron, pursuit of Captain Jack.
  AAAG at Peninsula camp, June.

Boyle, William H., 1st Lt., 21st Inf.
  AAQM & ACS, camp, Lost River.
  AAQM & ACS, Hospital Rock and 2d battle of Stronghold.
  AAQM & ACS, Peninsula camp.

Burton, George Hall, Capt., 21st Inf.
  CO, Company C, 21st Inf.
  1st battle of Stronghold.
  2d battle of Stronghold, in direct charge of all infantry in eastern force, under Mason.
  With Mason on patrol into lava beds, May 12.

Cabaniss, Thomas, Contract Surgeon (civilian).
  With troops on various marches and battles.

Camp, Erskine Mason, 1st Lt., 12th Inf.
  Possibly replaced Eagan as CO, Company G, 12th Inf. when latter was wounded, 2d battle of Stronghold.

Canby, Edward Richard Sprigg, Brig. Gen., USA.
  CG, Dept. of the Columbia.
  Killed by Modocs Apr. 11.

Chapin, Edward Silas, 2d Lt., 4th Art.
  Company officer, Battery E.
  In charge of howitzers, 2d battle of Stronghold.

Cranston, Arthur, 1st Lt., 4th Art.
  Company officer, Battery M.
  Assisted Capt. Thomas with mortars, 2d battle of Stronghold.
  Killed on Thomas patrol, Apr. 26.

Cresson, Charles Clemont, 1st Lt., 1st Cav.
  Company officer, Troop K.
  Assumed command of Troop K after Maj. Biddle's departure.
  2d battle of Stronghold
  In 3d Cav. Squadron, pursuit of Captain Jack.

Davis, Jefferson Columbus, Col., 23d Inf.
  CO, Dept. of the Columbia following death of Canby
  Assumed command in lava beds May 2.

De Witt, Calvin, Asst. Surg., USA
  At Gillem's Camp.
  In charge of hospital at Hospital Rock, 2d battle of Stronghold.
  In 1st Cav. Squadron, pursuit of Captain Jack.

Durrant, H. K. - Listed by Wheaton as being an Actg. Asst. Surgeon.
  Nothing else is known about him.

Eagan, Charles Patrick, 1st Lt., 12th Inf.
  CO, Company G, 12th Inf.
  Wounded, 2d battle of Stronghold.

Field, Edward, 1st Lt., (Capt., Apr. 29, 1873), 4th Art.
  Actg. CO, Battery A, effective April 26.
  With Mason on patrol into lava beds, Apr. 12, when he was in charge of both Batteries A and K.

Gillem, Alvan Cullem, Col., 1st Cav.
  Assumed command of troops in the field, Feb. 8.
  Relieved from command Apr. 21.
  Returned to Benicia Barracks as colonel of 1st Cav., Apr. 25.

Green, John, Maj., 1st Cav.
  CO, Ft. Klamath
  In charge of troops Lost River and Gillem's Camps.
  In charge of troops in western forces, 1st and 2d battles of Stronghold.
  In charge of the Cavalry Command, effective May 25.

Greenough, George Gordon, 1st Lt., 4th Art.
  Company officer, Battery G.

Grier, Matthew C, 1st Lt., 4th Art.
  Company officer, Battery M.
  AAQM & ACS, Gillem's Camp during 2d battle of Stronghold.
  AAQM & ACS, Fairchild's ranch, eff. May 25.

Harris, George Montgomery, 1st Lt., 4th Art.
  CO, Battery K.
  2d battle of Stronghold.
  Killed on Thomas patrol, Apr. 26.

Hasbrouck, Henry Cornelius, Capt., 4th Art.
  CO, Battery B.
  CO, Battle of Sorass Lake.
  CO, 2d Cav. Squadron, pursuit of Captain Jack.

Hazelton, James B., 1st Lt., 4th Art.
  Company officer, Battery B.
  Battle of Sorass Lake.
  In 2d Cav. Squadron, pursuit of Captain Jack.

Howe, Albion, 2d Lt., 4th Art.
  Company officer, Battery A.
  Assisted Capt. Thomas with mortars, 2d battle of Stronghold.
  Killed on Thomas patrol, Apr. 26.

Hoyt, Charles Henry, Capt., AQM, USA.
  Chief QM and Chief CS, effective May 25.

Jackson, James, Capt., 1st Cav.
  CO, Troop B.
  Battle of Lost River, Nov. 29.
  1st battle of Stronghold.
  2d battle of Stronghold.
  Battle of Sorass Lake.
  CO, 3d Cav. Squardon, pursuit of Captain Jack.

Kingsberry, George Washington, 2d Lt., 12th Inf.
  Became CO, Company E, 12th Inf., following death of Wright.

Kyle, John Gowdy, 2d Lt., 1st Cav.
  Company officer, Troop G.
  Wounded, 1st battle of Stronghold.
  Returned to duty, Mar. 15.
  CO, Troop G, during 2d battle of Stronghold, when Bernard became ill.
  Battle of Sorass Lake.
  In 2d Cav. Squadron, pursuit of Captain Jack.

Leary, Peter, Jr., 1st Lt., 4th Art.
  Company officer, Battery E.
  Actg. CO, Battery E, 2d battle of Stronghold.

Lydecker, Garret J., Capt. Engrs.
  Visited lava beds to prepare drawings after capture of Stronghold.

McElderry, Henry, Asst. Surg., USA
  Lost River Battle, Nov. 29.
  Chief Medical Officer, following death of Surgeon McMillin, April 6.
  Returned to Ft. Klamath, May 27.

Mason, Edwin Colley, Maj., 21st Inf.
  CO, 21st Inf. Bn.
  1st battle of Stronghold, in charge of inf. in western force.
  2d battle of Stronghold, in charge of eastern force.

Mendenhall, John, Capt., 4th Art.
  CO, Battery G.
  With Mason, patrol into lava beds, May 12.
  Placed in charge of all artillery batteries, May 25.

McMillin, Thomas, Asst. Surg., USA
  Chief Medical Officer, Modoc Expedition.
  Died at Gillem's Camp, heart disease, Apr. 6.

Miller, Marcus Peter, Capt., 4th Art.
  CO, Battery E.
  In charge of the major force (all except cavalry) in western force, 2d battle of Stronghold.
  With Mason, patrol into lava beds, May 12.

Miller, William Haven, 2d Lt., 1st Cav.
  Company officer, Troop F.
  In charge of howitzers, 1st battle of Stronghold.
  2d battle of Stronghold.
  In charge of wagon trains, Yreka to Gillem's Camp, Apr. 26.

Moore, Harry De Witt, 2d Lt., 21st Inf.
  Company officer, Company B, 21st Infantry.
  Commanded 1/2 Co. B, 1st battle of Stronghold.
  Was Adj. & Sig. Off. in Mason's command in 2d battle of Stronghold.
  Adj. on Mason's patrol into lava beds, May 12.

Moss, Henry Nixon, 1st Lt., 1st Cav.
  Company officer, Troop B.
  2d battle of Stronghold.
  Battle of Sorass Lake.
  In 3d Cav. Squadron, pursuit of Captain Jack.

Perry, David, Capt., 1st Cav.
  CO, Troop F.
  Wounded, 1st battle of Stronghold.
  2d battle of Stronghold.
  CO, 1st Cav. Squadron, pursuit of Captain Jack.

Phillips, Henry John, Asst. Surg., USA.
  Ordered to lava beds following sick leave, May 2.
  Became Med. Director, May 25.

Rayner, James Orlando, Post Chaplain
  Chaplain for general field hospital, lava beds.

Rheem, Edward Bellas, 2d Lt., 21st Inf.
  Company officer, Company C, 21st Inf.
  1st battle of Stronghold.

Rockwell, James, Jr., 2d Lt., 1st Cav.
  AAG for Colonel Gillem, Feb. 8.
  Relieved with Gillem, Apr. 21.

Ross, John Monroe, 1st Lt., 21st Inf.
  CO, Company B, 21st Inf.
  In reserve with 1/2 Co. B, 1st battle of Stronghold.
  2d battle of Stronghold.
  With Mason, patrol into lava beds, May 12.

Semig, Bernard Augustus. Probably contract surgeon (civilian).
  Had been a Med. Cadet, 1864-65.
  Would join army as asst. surg., 1874.

Sherwood, William L., 1st Lt., 21st Inf.
  Company officer, 21st Inf. (company unknown)
  Killed, Hospital Rock, Apr. 11.

Silva, Valentine Mott Cuyler, 1st Lt., 21st Inf.
  Details unknown.

Skinner, John Oscar, Contract Surg. (civilian)
  2d battle of Stronghold, with eastern force.
  Battle of Sorass Lake.
  In 2d Cav. Squadron, pursuit of Captain Jack.
  Joined army as asst. surg., 1874.

Stirling, F. S., Contract Surgeon (civilian)
  Scorpion Point.
  2d battle of Stronghold, with eastern force.
  General field hospital.

Stone, Ebenezer Whitten, 1st Lt., 21st Inf.
  AAQM, depot at Jacksonville, Ore.
  AAQM, depot at Yreka, Calif.
  Not actually in field.

Sumner, Edwin Vose, Capt., 1st Cav.
  ADC to Colonel Davis

Tallon, John E., apparently contract surgeon (civilian)
  Took part in Hasbrouck's pursuit of western band, May.
  In the field only briefly, then to Fort Klamath.

Theller, Edward Russell, 1st Lt., 21st Inf.
  CO, Company I, 21st Inf.
  2d battle of Stronghold.
  With Mason, patrol into lava beds, May 12.

Thomas, Evan, Capt., 4th Art.
  CO, Battery A.
  In charge of mortars, 2d battle of Stronghold.
  Killed leading a patrol, Apr. 26.

Throckmorton, Charles Beaujolais, Capt., 4th Art.
  CO, Battery M.
  2d battle of Stronghold.
  With Mason, patrol into lava beds, May 12.

Trimble, Joel Graham, Capt., 1st Cav.
  CO, Troop H.
  Guarded Gillem's Camp during 2d battle of Stronghold.
  In 1st Cav. Squadron, pursuit of Captain Jack.

Wheaton, Frank, Lt. Col., 21st Inf.
  CO, Dist of Lakes, at beginning of Modoc War.
  Relieved from field command on arrival of Colonel Gillem.
  Reappointed to field command on relief of Colonel Gillem.

Winters, William Henry, 1st Lt., 1st Cav.
  Adj., Cavalry Command, in pursuit of Captain Jack.

Wright, Thomas Forster, 1st Lt., 12th Inf.
  CO, Company E, 12th Inf.
  2d battle of Stronghold.
  Killed on Thomas patrol, Apr. 26.