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Bill Thayer

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 [decorative delimiter] Class of 1823

Vol. I

(Born Vt.)

Hannibal Day​1

(Ap'd Vt.)


Born Feb. 17, 1804, Montpelier, VT.

Military History. — Cadet at the Military Academy, Sep. 1, 1819, to July 1, 1823, when he was graduated and promoted in the Army to

Second Lieut., 2d Infantry, July 1, 1823.

Served: in garrison at Ft. Brady, Mich., 1823‑28; on Topographical duty, June 14, 1828, to Dec. 7, 1831; in garrison at Ft. Niagara, N. Y.,

(First Lieut., 2d Infantry, Apr. 4, 1832)

1832, — and Ft. Dearborn, Ill., 1832; in the "Black Hawk Expedition," but not at the seat of war;​a in garrison at Ft. Dearborn, Ill., 1832‑33, — Hancock Barracks, Me., 1833‑36, — and Ft. Independence, Mas., 1836; on Recruiting service, 1836‑38; in the Florida War, 1838‑39;

(Captain, 2d Infantry, July 7, 1838)

on sick leave of absence, 1839‑41; in the Florida War, 1841‑42; in garrison at Buffalo, N. Y., 1842‑44, 1844‑45, — and Detroit, Mich., 1845‑46; in the War with Mexico, 1846‑47, at Tampico; on Recruiting service, 1847‑48; in garrison at Ft. Hamilton, N. Y., 1848; on voyage to California, 1848‑49; on frontier duty at Sutersville, Cal., 1849, — Bear

(Major, 2d Infantry, Feb. 23, 1852)

Creek, Cal., 1849, — Camp Far West, Cal., 1850‑51, — and Benicia, Cal., 1852‑53; in garrison at Jefferson Barracks, Mo., 1854; and on frontier duty at Ft. Ridgely, Min., 1854‑55, — Ft. Ripley, Min., 1855‑56, — Ft. Randall, Dak., 1856‑58, — Ft. Laramie, Dak.//, 1859‑60, — and Ft. Abercrombie, Dak., 1860‑61.

(Lieut.‑Colonel, 2d Infantry, Feb. 25, 1861)

Served during the Rebellion of the Seceding States, 1861‑66; in command of 2d Infantry, at Georgetown, D. C., Aug. 10 to Dec. 16, 1861; on Recruiting service, Dec. 16, 1861, to June 28, 1863; in command of

(Colonel, 6th Infantry, Jan. 7, 1862)

brigade, 5th Corps (Army of the Potomac), in the Pennsylvania Campaign, June 28 to July, 1863, being engaged in the Battle of Gettysburg, July 2‑3, 1863, — and march to Warrenton, Va., July, 1863; in command

(Retired from Active Service, Aug. 1, 1863, "on his own Application, after Forty Consecutive Years of Service")

of Ft. Hamilton, N. Y., Aug. 1, 1863, to June 8, 1864; and on Military Commissions and Courts Martial, July 25, 1864, to June 15, 1869.

Bvt. Brig.‑General, U. S. Army, Mar. 13, 1865,
for Long and Faithful Services in the Army.

[Supplement, Vol. IV: 1890‑1900]

Vol. IV
Died at Morristown, N. J., Mar. 26, 1891: Aged 87.

Buried, Evergreen Cemetery, Leominster, MA.

See Annual Association of Graduates, U. S. M. A., 1891, for an obituary notice.

The Author's Note:

1 Was the son of Dr. Sylvester Day, Asst. Surgeon, U. S. Army.

Thayer's Note:

a The phrase "but not at (the) seat of war" occurs frequently in the Register in connection with the Black Hawk War; the explanation in most cases is the one given in the biographical sketch of James Monroe (q.v.).

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Page updated: 18 Nov 13