He was born in 1837/38 (2 (27 in 1865)).
He was born in Adams County, Pennsylvania (2).
When he enlisted, he was a laborer (2).
When he enlisted, he was 5 feet 6 inches tall, and had a dark complexion, dark eyes, and dark hair (2).
During the war
He was drafted in July 1863, but the Board of Enrollment gave him an exemption because he was the "only son of aged or infirm parents or [his] parents [were] dependent upon his labor for support" (3, 4).
He was drafted (1, 2, 3).
He was mustered into service on 28 February 1865 (1, 2).
He was enlisted for one year, at Chambersburg, Pennsylvania, by Captain Eyster (2).
His enlistment was credited to the sixteenth congressional district (2).
He was a private in company A (1, 5-6).
He was absent, sick, when the regiment mustered out (1, 2).
He was a private, in company A (5-6).
1 Bates, Samuel Penniman. History of Pennsylvania volunteers, 1861-5. Harrisburg: B. Singerly, state printer, 1869-71. 5 volumes. 'Ninety-first regiment', volume 3, pages 186-233.
(In the roster)
3 'The draft for Adams County', Gettysburg Compiler 31 August 1863, transcription by Kathy Mummert Francis abailable at Pennsylvania USGenWeb Project (accessed 23 December 2009)
(Israel [sic] Pecher, in "No. 13 - Liberty", draft held "on Monday and Tuesday last")
4 'Adams County Civil War exemptions - November 1863', Gettysburg Compiler 23 November 1863, transcribed by Kathy Mummert Francis, available at Pennsylvania US GenWeb project (accessed 23 December 2009)
5index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania
6index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania
Sources checked unsuccessfully
Pennsylvania, veterans burial cards, 1777-1999
Ancestry index (accessed March 11)
records of headstones for deceased Union veterans, 1879-1903
FamilySearch index (accessed 18 Feb 15)
pension index, by name
Ancestry index (accessed Apr 06)
Note on identification
Here is information about the Isaac Pecher who served in H 16 PA Cavalry:
1860 US census, Pennsylvania, Adams County, Liberty Township, microfilm series M653, film 1057, page 369 = 49 handwritten
see 1870 US census, Pennsylvania, Adams County, Liberty Township, post office Gettysburg, microfilm series M593, film 1289, page 244 = 11 handwritten: Isaac Pecher (33, b. PA, farmer), Annie (23, b. PA), Annie M (2, b. PA), Catharine (3 m., b. PA)
see 1880 US census, Pennsylvania, Adams County, Liberty Township, microfilm series T9, supervisor's district
1890 US census, veterans' schedule, Adams County, Liberty Township, supervisor's district 7, enumeration district 16, page 1
see 1900 US census, Pennsylvania, Adams County, Liberty Township, supervisor's district 12, enumeration district 12, microfilm series T623, film 1354, page 142 = 4 A handwritten: Isaac H [?] Pecher (b. June 1837, 62, married 34 years, b. PA, farmer), with wife Annie M (b. Mar 1847, 53, 12 children, 11 living, b. PA), and children Rachel F (b. Apr 1873 PA), John B (b. Apr 1876, PA), Lizzie V (b. Nov 1878, PA), Harry (b. June 1883, PA), Esther H (b. Mar [?] 1885, PA), Carrie (b. May 1888 PA), Euphemia (b. Feb 1889, PA), and Maggie (b.Nov 1880, PA)
see 1910 US census, Pennsylvania, Adams County, Liberty Township, supervisor's district 15, enumeration district 20, microfilm series T624, film 1292, page 222 = 8 A-B handwritten: Isaac Pecher (72, married 44 years, b. PA, farmer), with wife Annie M (63, married 46 years, 12 children, 11 living, b. PA), and daughter Euphemia R (20, b. PA)
see Find a Grave memorial 19603993, with a photo of the tombstone, whose inscription is: "ISAAC H. PECHER JUNE 9, 1837 JUNE 5, 1911 SERVED IN CO. H [16T]H PA VOL. CAVALRY [covered] BRIG., 2ND DIV [covered] CAVALRY CORPS [ARMY] OF THE POTOMAC"
[1860 US census, Pennsylvania, Adams County, Liberty Township, microfilm series M653, film 1057, page 369 = 49 handwritten]
[This is the only person I have been able to find who could possibly be Isaac Peecher.
However, he clearly is the Isaac Peecher who served in the 16th PA Cavalry, according to the 1890 census, transcribed below.
Note also that the pension index by regiment has a card for him; he applied successfully in 1888 and again in 1907, died on 5 June 1911 at Fairfield, and his widow applied successfully on 9 June 1911, all based only on his service in H 16th PA Cavalry; the Footnote index has no other Isaac Pecher's]
[1890 US census, veterans' schedule, Adams County, Liberty Township, supervisor's district 7, enumeration district 16, page 1]
[an Isaac Pecher did serve in company H of the 16th Pennsylvania Cavalry as a private from 27 April 1865 until 11 August 1865]
[name] Pecher Isaac
[unit] 16 Pa Cal
[enlistment date] 27 Apr 1865
[discharge date] 11 Aug 1865
[length of service] 0 years, 3 months, 14 days
[post office address] Do [sc. Fairfield]
[disability incurred] Typhoid fever termenating [?] in Dysantry [?]
[remarks] Discharged at expiration of Term
[1890 US census, veterans' schedule, Pennsylvania, Dauphin County, Middletown (image 12 of 24 on Ancestry)]
[identification is unknown; I did not find a 'Picker' listed in the ARIAS Civil war cards (accessed 4 March 2011), but have no idea whether this is the Isaac Peecher who served in the 91st]
[name] Picker [sic] Isaac
[enlistment date] [blank]
[discharge date] [blank]
[length of service] [blank]
[post office address] [blank]
[disability incurred] [blank]