Seventy-eighth Infantry.-Cols., William Sirwell, Augustus
B. Bonnaffon; Lieut.-Cols., Archibald Blakeley, A. B.
Bonnaffon, Henry W. Torbett; Majs., A. B. Bonnaffon, James N.
Hosey, Robert M. Smith. The 78th regiment was recruited in
the late summer and early fall of 1861, and was mustered into
the U.S. service from the middle of September to the middle of
October at Camp Orr on the Allegheny river, for three years.
Cos. B, F, G, I, and K were raised in Armstrong county, C and E
in Clarion, A in Indiana, D in Indiana and Cambria, and H in
Butler. On Oct. 18, 1861, it left the state and proceeded by
transport to Louisville, Ky., and thence by rail to Nolin
creek, where it was assigned to Gen. McCook's division, Army
of the Ohio, and was brigaded with the 78th Pa., 1st Wis., and
38th Ind., commanded by Brig.-Gen. James S. Negley. In
December it moved with the brigade to Munfordville, Ky., and
in March, 1862, it arrived with the division at Camp Andy
Johnson, Nashville, Tenn. Throughout the remainder of the
spring and summer it performed guard duty on the railroad from
Nashville to Columbia, garrison duty at Pulaski and
Rogersville, guard duty on the railroad from Columbia to Elk
river, and was engaged in numerous skirmishes with the enemy's
cavalry. While Buell's army was marching north into Kentucky,
in the race with Gen. Bragg for Louisville, the 78th was
ordered into the defenses of Nashville, where the garrison was
often attacked. It was engaged at La Vergne, Neely's bend,
White creek, Charlottsville and Franklin Pike, remaining in
Nashville until Dec. 12, when it moved to Camp Hamilton, where
it was assigned to Miller's brigade, of Negley's eighth
division. It was heavily engaged at the sanguinary battle of
Stone's River, or Murfreesboro, where it behaved with great
gallantry, losing 190 men killed and wounded. In Jan., 1863,
the Army of the Cumberland, under Gen. Rosecrans, was divided
into three corps, the 14th, 2Oth and 21st, and the 78th was
assigned to the 3rd brigade (Col. Miller), 2nd division (Gen.
Negley), 14th corps (Gen. Thomas). It was engaged in provost
duty at Murfreesboro until April, and in June shared in
Rosecrans, campaign from Murfreesboro to Tullahoma. It then
encamped at Decherd until Aug. 15, when it moved with the army
in pursuit of Bragg. On Sept. 11, a part of the regiment was
engaged at Dug gap, Ga., the whole regiment shared in the
desperate fighting at Chickamauga and then retired with the
army to Chattanooga. While here it was assigned to the 3rd
brigade (Gen. Starkweather), 1st division (Gen. R. M.
Johnson), 14th corps (Gen. John M. Palmer). In the decisive
engagements at Orchard Knob, Lookout Mountain, and Missionary
Ridge, the 78th was engaged with a small loss, and it
participated in a reconnaissance to the summit of Lookout
Mountain. In company with the 21st Wis., the regiment was
assigned to duty on Lookout mountain until May, 1864, when it
rejoined its brigade at Graysville and moved with Sherman's
army on the Atlanta campaign. It saw much hard fighting at
Tunnel Hill, Buzzard Roost gap, Resaca, Dallas, New Hope
Church and in the long struggle before Kennesaw mountain.
While in front of Kennesaw mountain it was ordered to
Chattanooga to guard wagon trains to the front and was thus
employed for three months, when it was ordered to report to
Gen. Rousseau at Nashville. It was active at Pulaski, Tenn.,
and a little later was mounted and moved with Rousseau against
the enemy's cavalry in Southern Tenn., returning to Nashville
on Oct. 17. Its term of service having expired, all the
original members, except the veterans and recruits, returned
to Pennsylvania and were mustered out at Kittanning, Nov. 4,
1864. The veterans and recruits remained at Nashville and in
March, 1865, the regiment was recruited to the minimum
strength by the assignment of eight new companies, commanded
by Col. Bonnaffon. The regiment as thus organized was finale
mustered out at Nashville on Sept. 11, 1865.
Source: The Union Army, vol. 1
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