The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1891-09-19
General Isaac r. Ouinby Dead.

ROCHESTER, N. Y, Sept. 1s.-General Isaac r.
Quinby, classmate OF General Grant at West
Point, and who served with distinction in the
army, died here this morning, aged 20.
[Isaac Ferdinand Quinby was born near Nor.
ristown, n. j., on January g. 1871. He was
graduate of the United States Military academy,
standing first in engineering studies in the
class of ls43. He was a classmate and intimate
sistant professor at West Point AT the
close OF the Mexican war he parti-
cipated in several skirmishes at the Rio
professor of mathmetics In the Rochester uni
versity at the opening of that institution in
September, 1851, resigning from the army in
resigned his profes sorship and took command as
colonel of the Thirteenth New York regiment.
His command was the first regiment TO march
through Baltimore on May 80, 1861, after the at
tack on the Sixth Massachusetts,, April 10. On
August Colonel Quinby resigned his commits
sion and resumed the professorship. On March
IL, 1862. he was appointed brigadiergene OF
volunteers and assigned to the command at Col
umbus, KY, and in the month of October iol-
loving he was relieved of the command
and took charge of the Seventh division of
orders to turn the Confederate right flank at
NIcksburg, TO move via Yazoo pass, the Cold
water, Iaiiahatchfe and Yazoo rivers, he pushed
forward under great difficulties, arriving at
Fort Pemberton on March Is, 1863. Finding no
vantage ground for attack at this point he con-
ceived the idea OF crossing the 1allabusha river
on the east side and forcing surrender OF the
Tort in this way. After he had planned siege
ana made preparations to mount heavy siege
guns, he received orders from General Grant to
discontinue the flank movement, and on April
he withdrew his forces. The division had been
operating in malarious region, and the ankle
ties and hard hips of the expedition brought on
severe attack of Illness TO General Quinby,
and ne YVES ordered home on sick leave on the
lst OF May On learning of General Grants
movements about Vicksburg he returned to the
field. assumed command and led his division in
the assault on May 10 aud in later attacks
Illness again attacked him and by General
Grants orders he returned TO Rochester on June
D, remaining there until July l. He commanded
the rendezvous at Emira from the latter date
until the 3lst of December, when he realized
that his health was so badly shattered that he
would be unable to resume active work at the
'front.' and he reluctantly resigned his commits
sion in the army, and resumed the chair OF
mathematics In Rochester university. General
Qulnby was appointed United states MARSHAL for
the Northern district of New York state
IN 1859, and held the office during President
Grants two terms. He retained his professor
ship till lS4. He was appointed city surveyor
OF Rochester in May, 1855, and held that office
lor series OF years. He was trustee OF the
soldiers Home at Bath, \. Y, having been vice
president of the board of trustees from the
foundation of the home in 1879 till his resigna-
non IN lSS6. He was often employed as con-
sulting engineer and has rewritten several OF
the WORKS in the "Robinson Course OF Nathe-
matiCs, and the treatise on the "Dlherentlal
and Integral Calculus in that series is his own
production