Some links (where most of the above information was first obtained):       
German Pocket Army: http://users.hunterlink.net.au/~maampo/militaer/milindex.html
Prussian Army Units: http://www.michaelectric.com
Prussian History and Military History: http://www.grosser-generalstab.de
Prussian History (including Military): http://www.preussenweb.de/preussen.htm

In addition to the above list, these towns have military references in Meyers gazetteer (1905):
Kosten
Samter
Schroda

(excerpt from) The Air Force in East- and West-Prussia http://rapidttp.com/milhist/vol083jm.html

The German air force, proper name: Koeniglich Preussische Fliegertruppe, Royal Prussian Flying Corps, was represented by a Flieger-Bataillon No.2, with stations in Koenigsberg (East Prussia), and Posen and Graudenz (West Prussia). The commander was Major Kuckein, his adjutant 2nd Lieutenant Alfred Mahncke. The battalion was formed on 1.10.1913 and had an authorized strength of 12 officers and 398 other ranks.
During the following months, until the outbreak of WW I, the unit increased in number and eventually consisted of sections Nos 14, 17 and 29, as well as a few fortress flight squadrons, altogether around twenty aircraft, too few to cover the vast terrain properly.