Author: Charles Barney Whittelsey
Title: Genealogy of the Whittelsey-Whittlesey family
Publisher: Hartford, Conn. : Case, Lockwood & Brainard Co.:
   Gen. Whittelsey devoted much of his leisure time during 
several years next prior to his decease in collecting information 
and writing up the family history, published in 1855, which has 
proved invaluable to the compiler. Those who went through 
the labors of procuring and arranging details of the first gene- 
alogy could appreciate the patience and perseverance necessary 
to such a work. His corps commander is the author of an 
eulogy published in the Detroit Post, from which the following 
is extracted : 
' ' The press telegrams from Washington announce the death of General 
H. M. Whittelsey in the United States military hospital near that city. To 
those who lived in Detroit twelve years ago, General Whittelsey was well 
known as among the foremost young men in most public enterprises — in 
the Young Men's Society, in the fire department, in the military organiza- 
tions, and in educational interests generally. Few among us were more 
esteemed for high intellectual and social qualities. In the summer of 1861 
he left the office of the Register of Deeds for the county of Wayne to accept 
an appointment as assistant quartermaster of the volunteers, with the rank 
of captain in the United States army. He served through the war with 
fidelity and conscientiousness of duty unsurpassed in his department of ser- 
vice. During all the years of the war he was the custodian of millions of 
public money and public property. So conscientious in the discharge of 
even minor duties of office ; so punctilious in the discharge of all social 
courtesies ; a friend so loving, generous, and noble, a man so full of the 
attributes of honor and honesty, the writer may be permitted to repeat of 
him, with a deep feeling, the trite quotation : 
" ' None knew him but to love him. 
None named him but to praise.' " 
Service record:  Promoted to Full Captain on 15 Apr 1861.Commissioned an officer in the U.S. Volunteers Quartermaster's Dept Infantry Regiment on 15 Apr 1861.Mustered out on 15 Jul 1861.Commissioned an officer in the U.S. Volunteers Quartermaster's Dept Infantry Regiment on 31 Oct 1861.Promoted to Full Captain on 31 Oct 1861.Promoted to Brevet Major on 13 Mar 1865.Promoted to Brevet Lt Colonel on 13 Mar 1865.Promoted to Brevet Colonel on 13 Mar 1865.Promoted to Brevet Brig-General on 13 Mar 1865.Promoted to Full Colonel on 26 May 1865.Mustered out on 16 Jul 1867 (U.S., Civil War Soldier Records and Profiles, 1861-1865 [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2009).
Quartermaster for Michigan State troops; Captain AQM on staff of Brig. General Alpheus S. Williams; Captain and acting Chief QM for XX Corps; Colonel and Chief QM for Army of Georga; City Comptroller of Washington, D.C., 1870-1871. Buried Evergreen Cemetery, Owego, N.Y.  Section 12, lot 23. 
(www site: Broome County G.A.R. posts (http://library.morrisville.edu/local_history/sites/gar_post/broome_gar.html; accessed March 3, 2003].
   
   Dear Ed,
A quick look at an internet database I subscribe to shows the General dying
in Washington D.C. rather than Owego, but otherwise all the statistics are
the same.
It shows his service history as:
 04/01/61
 Qtr Master
 Full
 Vol
 Michigan Troops
 10/31/61
 Captain
 Full
 Vol
 Captain & Asst Quartermaster
 03/13/65
 Brig-Gen
 Brevet
 Vol
 05/26/65
 Colonel
 Full
 Vol
 Colonel & Quartermaster
 
(e-mail from Michael Spangler, March 21, 2003)