He was transferred on 24 December 1861 to company H.
[sources: 1, 4, 5, 6; see also 7, 8]
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)
I have tentatively identified Andrew Bloom (K/H) and Manuel Bloom (H).
The only evidence I have for Manuel Bloom is the compiled service record, which claims he appears on the company H muster-out roll as enlisting on 24 November 1861 and deserting the next day.
His appearing on the muster-out roll but not in Bates (or the Pennsylvania Archives ARIAS cards) is odd, since Bates' roster was derived from the muster-out roll.
That leads me to guess that Bates read his name as 'Andrew'--at least, I don't have a plausible explanation of Manuel's absence otherwise.
Note also the odd transfer from company K to company H a month after he deserted, which I don't understand.
I am not at all confident that Manuel is Andrew.
Sources checked unsuccessfully
1880 US census
Andrew Bloom, 50, born Germany, farm worker, with wife Susan Hanah Bloom (45, born Germany) et al., microfilm series T9, film 1184, page 230 C, FamilySearch
Andrew Blum 48, born Germany, tailor, with wife Cecelia Blum (37, born Pennsylvania) et al., microfilm series T9, film 1181, page 375 B, FamilySearch
1890 US census, veterans schedules
Ancestry index (accessed June 2007)
1900 US census
Andrew Blum, at 1921 Venango Street, ward 25, Philadelphia Pennsylvania, born Germany, November 1829, with wife Susanna (66, born Germany), et al., enumeration district 606, microfilm series T623, film 1467, page 186 = 5 A handwritten, FamilySearch
Philadelphia death certificates
Andrew Blum, died 3 April 1905, Wheat Sheaf Lane near Chalkley Lane, Philadelphia, 75, born Germany, laborer, widowed, buried 6 April 1905 in National Cem, Philadelphia PA, FamilySearch
pension index, by name
Ancestry index (accessed March 2007)
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.
Manuel Bloom is not in the roster
Pennsylvania archives, ARIAS, Civil War Veterans' card file, 1861-1866
searched for Manuel Bloom in accessed 1 August 2014
pension index, by unit
searched for Manuel Bloom in Fold3 index, accessed 1 August 2014
pension index, by name
searched for Manuel Bloom in Ancestry index, accessed 1 August 2014
Pennsylvania, veterans burial cards, 1777-1999
searched for Manuel Bloom in Ancestry index (accessed 1 August 2014)