The rest of the wartime footprint, tested: no camp, no POW branch, no training ground, no defense housing on this ground — what was NOT here, printed with what was

The installation footprint was tested item by item for both wars, and the negative is the article: Camps and training grounds: none named for Penn Township in either war in any source reached — Indiana's wartime training map (Camp Atterbury, activated 1942 in Johnson/Bartholomew/Brown counties; Fort Benjamin Harrison) seats nothing in St. Joseph County. Prisoners of war: Indiana's POW system was Camp Atterbury's, and its branch camps are named in the state record — Austin, Windfall, Vincennes, Eaton and Morristown — every one in the state's centre or south, none in St. Joseph County, and no branch camp, POW labor detachment or internment site is named for Penn Township in any source reached (Indiana Historical Bureau, the Indiana History Blog's POW series). Defense housing: no war-housing project is named for Osceola in any source reached; the town's wartime growth is a neighborhoods record of private additions after the war, not a federal housing footprint during it. What WAS here, at its already-banked size, so the negative is not read as an empty war: the manpower footprint Wars & Military Service tests whole — the First World War service-flag and honor-roll searches negative for an Osceola name, the Second World War enlistment extracts swept (the town's one proved dead, Harry B. Kincaid Jr., on a Mishawaka enlistment), the township's men in the county's companies and rolls — and the farms' food production, the depot's traffic, and the commutes to the valley's war plants in item 8. The county's one wartime installation-class site prints at boundary size as the exception that proves the map: the U.S. Army Ordnance Department's use of the Studebaker Proving Ground under contract of 29 March 1943, testing trucks, half-tracks, tank-recovery vehicles and armored cars until 30 June 1945 — on South Bend's ground, eight miles west on State Road 2, not this township's.

Sources: Indiana Historical Bureau / Indiana History Blog, Camp Atterbury POW series (the branch-camp list as quoted); Wars & Military Service (the manpower tests and the Kincaid record); Studebaker Proving Ground wartime record (the 29 March 1943 Ordnance contract; testing to 30 June 1945), boundary size. Searches run November 2026: camp, POW, training-ground and defense-housing records as represented in open sources, for Osceola and Penn Township — none returned.