I got an reply from Kronoskaf concerning the Prussian OOB and the discussion on this thread.
Here are the answers that I received from members of our group who
double-checked our articles on the Prussian and Austrian infantry
organisations.
------------- from Christian Rogge ----------------------------
Die Zietens quotations of our kronoskaf articles are all fine. The
Austrian organization I edited myself and is about as accurate as you
can get it. Source was Großer Generalstab here for the most part. So
far, their figures make the best match. Unsurpassed to the present day.
Prussia I didn't edit, but it looks fine to me. I could support it
with the figures Curt Jany provides (he is the guy that edited the
final vols of the so far unpublished Großer Generalstab History on the
7YW, as I was informed by the director of the Berlin Preußisches
Geheimes Staatsarchiv. They have unearthed the manuscripts only
recently).
Not sure why Duffy fails to mention anything. I also only know the
1970's edition where he only accounts for the peace time TO&E with 8
pelotons/firings and not mentioning the wartime 10 pelotons/firings
for the augmented battalions.
Quoting Curt Jany, Geschichte der Preußischen Armee vom 15.
Jahrhundert bis 1914, vol ii, re-print Osnabrück 1967, pp. 352 ff.:
(Again, this is the single best and most accurate source available)
Infantry field strength by September 1756 ? after mobilization and
first simple war time augmentation:
Total 126 battalions with 90,800 men
In detail (excluding artillerists and pioneers/Zimmerleute manning the guns):
IR 15/I. Leib-Garde with 45 OFF, 61 NCO's, 33 tambours & hautbois, 769
soldats = 908 men
other infantry regiments (excl. grenadiers) with 42 OFF, 100 NCO's, 38
tambours & hautbois, 1,320 soldats = 1,500 men or 750 per battalion
grenadier battalion: with 18 OFF, 36 NCO's, 20 tambours, 560
grenadiers = 634 men
The total figures account for 6 non armed/ranking reserve men and 2
fouriers per coy that will have to be deducted from the battalions
effective combat strength (see below).
My notes:
IR 6 Grenadier-Garde not mentioned here, possibly elsewhere in the
book. Should be similar to 15/I. with some less officers.
15/I: officer figures are quite boosted because of the many volonteers
holding an officers patent of the guards.
Jany continued:
The first simple augmentation was accomplished simply by arming most
of the so far non-armed (non ranking) reserve entitled
Überkomplette/supernumeraries. The 4 guard battalions, IR 35, and 39
took to the field without Überkomplette armed. The Guards already had
an augmented strength also some other units, such as the Wesel
garrison had different strength. To complicated to present all this
in detail.
In short, the combat strength now was for an infantry battailon 205
files to the former (1748) near 190. total 702 combatants grenadier
battailon had 176 files to the former 260 with 602 combatants.
2nd war time augmentation as per Royal Cabinet Ordre of 8 and 9 January 1757:
38 infantry regiments incl its grenadiers coys were again to be
augmented by 30 rank and file per company or a 150 for the line
battailon and 120 for a grenadier battalion
Line bat now with 255 files, the gren bat with 216 files.
This "new footing" included the regiments 1-5, 7-14, 16-34, 37, 38, 40-43.
The guards, and the regiments without recruting cantons ( 35, 39, 44,
45, and 48) as well as the garrison battalions retrained the
"peacetime footing" of pre-September 1756, while the regiments 36, 46,
47, and 49 retrained the 1756 war time footing.
With grenadier battalions, that were composed from different footing
regiments, a specialized system for evening out the odds was employed.
---- from The Baron ---------------------------------------
Well, having read the thread "Die Zieten" linked in his email, it
looks like his opposite in the argument, "Charles", cites Duffy's "The
Army of Frederick the Great", albeit the first edition from 1974. I
have the second edition, published in 1996, with much rework based on
additional sources not available in the early Seventies. The info
"Charles" cites jibes more or less with the info in our article.