P.O. Box 1142

P.O. Box 1142 was the cover name for a top-secret U.S. military intelligence installation at Fort Hunt, Virginia (today Fort Hunt Park on the George Washington Memorial Parkway), during World War II. The mailing address in Alexandria, Virginia, was all most outsiders ever knew of the site.

The installation is closely tied to Camp Ritchie: the National Park Service reports that 68 of 547 Army personnel on official rosters of the strategic interrogation program (about 12%) had trained at the Military Intelligence Training Center at Camp Ritchie. Many interrogators were recent immigrants from Nazi Europe—including German-born Jews—who spoke German and knew German culture. After the war, personnel were sworn to secrecy; buildings were largely leveled, and the story remained obscure until records were declassified decades later (classified for more than sixty years).

Dan Gross — who ran the original theritchieboys.com, a major research source for this site, and a longtime friend of many Ritchie Boys — began his Camp Ritchie work while volunteering with the National Park Service on Fort Hunt / P.O. Box 1142 records at the National Archives.

Site history

Fort Hunt Park sits along the Potomac in Alexandria, Virginia. In the 1760s the land was part of President George Washington’s River Farm. In the 1890s the U.S. military acquired what was then known as Sheridan’s Point to build a coastal gun battery; once the post was operational it was renamed Fort Hunt for Brevet Major General Henry Jackson Hunt (1819–1889), an artillery officer of the Mexican–American and Civil Wars.

Gun batteries later known as Battery Mount Vernon, Battery Porter, Battery Robinson, and Battery Sater were among structures built between 1898 and 1923; remnants of those works and one Non-Commissioned Officer (NCO) quarters still stand in the park.

Before World War II the War Department several times sought to transfer the underused post. In 1931 an African American ROTC unit drilled and camped there for several years; the site also served as a campground for Bonus Army groups. Fort Hunt came under National Park Service administration in 1933. From 1933 to 1942 it hosted Civilian Conservation Corps (CCC) company camps. In 1939, while it was still a CCC encampment, King George VI and Queen Elizabeth—after visiting Mount Vernon—stopped at Fort Hunt to inspect the camp while traveling to Arlington National Cemetery with President Franklin D. Roosevelt and First Lady Eleanor Roosevelt.

Location and wartime cover

After Pearl Harbor, the War Department selected Fort Hunt as the East Coast domestic military intelligence center. On 15 May 1942, the Department of the Interior issued a special-use permit to the War Department for a “defense camp” for the duration of the war plus one year. At its height the site had about 87 temporary and permanent structures and was known only as P.O. Box 1142.

Programs

Strategic interrogation (MIS-Y)

While the Army held operational charge, interrogations were run by the Army’s Military Intelligence Service (MIS) and the Navy’s Office of Naval Intelligence (ONI). Supporting subsections included enemy intelligence (German counterintelligence and espionage), Army (weapons and organization), Air (Luftwaffe, rockets, strategic bombing), scientific research, and industrial economics. The Navy focused on U-boat commanders and crews.

MIS-Y was the nation’s largest Joint Interrogation Center of its kind: from 1942 through July 1945, 3,451 prisoners were processed, among them high-level captives such as German generals, nuclear scientists, and heads of spy organizations. Intelligence came from interrogation, listening devices, and stool pigeons; more than 5,000 reports had been produced by the end of August 1945. Examples cited by the NPS include confirmation that V-1 and V-2 rockets were made at Peenemünde (soon heavily bombed) and postwar questioning of figures such as Wernher von Braun’s team (Operation Paperclip, partly at Fort Strong) and General Reinhard Gehlen.

Methods emphasized non-violent, individualized interrogation—later held up as a model—rather than coercion.

Escape and evasion (MIS-X)

Even more secret than MIS-Y was the escape-and-evasion program (MIS-X), begun in February 1943 and modeled on British practice. Its nerve center was the renovated post hospital (later the site of Picnic Pavilion A). Work included silk escape maps, uniform buttons with hidden compasses, codes for “code users” whose letters home were routed to P.O. Box 1142, and care packages from fictitious relief organizations that smuggled maps, currency, radios, and other aids into German POW camps (by 1944, about 80–120 packages a day)—escape-and-evasion kits disguised as humanitarian aid.

MIS-X supported escape planning at camps such as Stalag Luft III (the “Great Escape” of March 1944). Of 95,532 U.S. servicemen captured by Germany, 737 escaped; how many avoided capture partly because of E&E training is unknown. On 20 August 1945, the War Department ordered MIS-X records at P.O. Box 1142 destroyed.

Military intelligence research

Translators and analysts mined captured documents, newspapers, and scientific journals. The program also gathered and distributed German order of battle information used in planning for D-Day. Ritchie Boys such as Paul Fairbrook later described MIRS / P.O. Box 1142 document work (including the “Red Book” order-of-battle volumes) as a major postwar-facing assignment after Camp Ritchie.

After the war

Fort Hunt was declared surplus in November 1946; temporary wartime buildings were removed, and the property returned to the National Park Service in January 1948. The site became a park unit within the George Washington Memorial Parkway and was added to the National Register of Historic Places in 1980. Today hiking areas, picnic pavilions, and sports fields sit beside the ruins of the historic gun batteries and remaining buildings—while the wartime story remained largely hidden until declassification and oral-history work.

Fort Hunt Oral History Project

In the early 2000s an NPS team from the George Washington Memorial Parkway (which administers Fort Hunt Park)—including Vince Santucci, Brandon Bies, and Matthew Virta—researched declassified documents at the National Archives and Records Administration and launched the Fort Hunt Park Oral History Project to interview veterans of P.O. Box 1142. Interviews have continued over succeeding years; the park has also worked to re-digitize and professionally transcribe the materials so researchers and the public can use them. Many of the transcripts cited below come from that project.

Ritchie Boys and this wiki

Soldiers and staff already linked on this site to Fort Hunt / P.O. Box 1142 work include (non-exhaustive):

• Paul Fairbrook — MIRS / order-of-battle document work
• Werner Herbert Gumpertz — Class 25; Seventh Army interrogator (joint NPS interview with Gans and Schwab)
• Henry Schwab — Class 12 / IPW 57 (joint NPS interview with Gans and Gumpertz)
• Werner Moritz — British-trained early 1142 monitor/interrogator (from July 1942); later Class 21 documents examiner
• Werner Joachim Gans — Ritchie Boy / instructor; on 1142 rosters and remembered APO 1142, but unsure he was stationed at Fort Hunt
• Rudolph Eugene Fellner — Class 7 German and Italian interrogator training; also served at 1142 (duties not detailed in excerpt)
• Peter Weiss — Class 28; cell monitoring and mail censorship at 1142; later Fort Strong scientist intake
• Norman N. Graber — Dachau/Buchenwald survivor; Class 21 / IPW 407; assigned to 1142 (duties not detailed in surviving interview excerpt)
• John Werner Kluge — commanded MIRS at 1142 (Red Book / captured-document exploitation)
• Henry H. Kolm — Class 29 selectee to 1142 (after 20th Armored engineer service and Pentagon G-2 intervention)
• George L. Frenkel — interrogation officer at 1142 (Geneva-focused); later Berlin District Interrogation Center
• Erich W. Kramer (Eric) — IPW interrogator at 1142; later Fort Strong processing of von Braun / V-weapon scientists
• Arno Joseph Mayer — morale officer for high-value German prisoners (scientists/officers), not interrogator
• Dieter D. Kober — MIRS Order of Battle / “Red Book”; Pentagon OB work; Hitler Youth monograph (London)
• William W. Hess — Class 6; interrogation / monitoring at 1142 (NPS oral history + prior research)
• Werner E. Michel — NPS Fort Hunt Oral History Project interviewee (Class 29 / IPW 270); did not serve at 1142
• First Class assignees noted on Secret Heroes/First Class (among others John F. Parker, Young A. Neal, Henry J. Staudigl, Robert E. Walker, Hubert J. Plumpe)

See also

• Camp Ritchie
• Dan Gross Memorial
• Secret Heroes/First Class
• Camp Ritchie Background
• Ritchie Boy Interviews (e.g. Fairbrook oral histories mentioning Fort Hunt)

Sources

• National Park Service — Fort Hunt Oral History Project / P.O. Box 1142 introduction (archived NPS site text: site history from River Farm through CCC and the 1939 royal visit; wartime MIS-X / MIS-Y overview; Project researchers Vince Santucci, Brandon Bies, and Matthew Virta; NARA research and ongoing transcription)
• Example NPS Fort Hunt Oral History transcript hosting (Hess and related project PDFs under the NPS museum exhibits path)
• NPS Fort Hunt Oral History — Werner E. Michel transcript (2 April 2009; project interview—did not serve at Fort Hunt)
• NPS Fort Hunt Oral History — William Hess transcript
• NPS Fort Hunt Oral History — Werner Moritz transcript
• NPS Fort Hunt Oral History — Gans / Gumpertz / Schwab joint transcript
• NPS Fort Hunt Oral History — Werner Gans transcript
• NPS Fort Hunt Oral History — Rudolph Fellner transcript
• NPS Fort Hunt Oral History — Peter Weiss transcript
• NPS Fort Hunt Oral History — Norman Graber transcript
• NPS Fort Hunt Oral History — John W. Kluge transcript
• NPS Fort Hunt Oral History — Henry Kolm transcript
• NPS Fort Hunt Oral History — George Frenkel transcript (2006–2007)
• NPS Fort Hunt Oral History — Eric Kramer transcript (12 September 2006)
• NPS Fort Hunt Oral History — Arno Mayer transcript (16 September 2008)
• NPS Fort Hunt Oral History — Dieter Kober transcript (17–18 January 2008)
• National Park Service — “POWs and Intel at Fort Hunt in World War II” (last updated 11 July 2022)
• NPS article sources include Dan Gross (personal communication to D. Canter, 4 May 2012, based on NARA II research); Steven M. Kleinman, “The History of MIS-Y” (2002); Matthew R. Laird, Fort Hunt historic resource study (NPS, 2000); Lloyd R. Shoemaker, The Escape Factory (1990); and related works cited on the NPS page.