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The Story of the U.S. Coast Guard and OSS in World War II
Guardian Spies
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USCG/OSS Domestic Cooperation
MEB, Inc. All rights reserved. Copyright 2007 - 2011
During World War II the Office of Strategic Services  acquired a number of cabin
cruisers to conduct maritime training operations in the Washington, D.C. area,
referred to by the OSS as Detachment "D"on the Potomac River.  Two such vessels
were the MARIBEL and the MARSYL.  Using Coast Guard Captain of the Port (COTP)
authority, the OSS was able to license these "cruisers," obtain slots at local marinas
and yacht clubs when up in the D.C. area, and receive special COTP protection for
their maritime training missions.  Because the Coast Guard and the Navy had acquired
had to conduct an extensive search to identify vessels between 70-90' in length to
prepare for their maritime training mission.  According to the correspondence obtained
form the declassified OSS files at the National Archive, this process to identify vessels
for OSS Detachment "D" began around October of 1942.  

As noted in an "inter-office OSS memo" between LT Glenn (USN/OSS) and Mr.
Gilpatrick (OSS civilian) dated 14 July 1943, it appears that in addition to the special
maritime training at Detachment "D", the use of a radio set up called a "Buzzer Set"
was requested for "code training."

Coordination between the Coast Guard Captain of the Port, Captain H.G.
Hemmingway, and OSS Detachment "D" began in June 1943 in order to coordinate the
special protection zones required for maritime training. The MARIBEL remained as a
training platform for Detachment "D" until 15 January 1944 when it was returned to its
owner. Other vessels such as the WETHEA and SPINDLE (photos/documents below)
were also considered for service for Detachment "D" but the record is not clear on
whether they were ever placed in to service for the OSS.

(To enlarge the documents and photos, right click and save or copy the
document/photo desired)

Source: National Archives RG226_328_92_9
Letter from Commander Woolley (OSS)
to the Coast Guard Captain of the Port (COTP) requesting
support.

15 June 1943

Source: National Archive RG226_328_92_9
SECRET letter from CAPT Hemmingway, USCG COTP, to
CDR Woolley (OSS Detachment "D") confirming an
agreement to provide"special" licensing and protection
support of operations.  

16 June 1943

Source: National Archive RG226_328_92_9
Coast Guard Protection Order issued 17 June 1943 to CG
patrol craft using USCG Captain of the Port Authority.  
Issued by S.E. Barron, Chief of Staff, District Coast Guard
Officer, Potomac River Naval Command

Source: National Archives  RG226_328_92_9
Cabin Cruiser WETHEA

Source: National Archive RG226_328_92_8
Twin Screw Cabin Cruiser SPINDLE

Source: National Archive RG 226_328_92_8
In the photo below from AREA D, are John Spence (USN), “America’s First Frogman”
(1Q2000 BLAST), and kneeling directly in front of him is LT Jack Taylor (USN), the first
true American sea-air- land commando (3Q2002 BLAST)."

According to the Naval Special Warfare Foundation, "John Spence was the first to train
with the Lambertsen Lung (2Q1997 BLAST), and deployed with “L-Unit” to England for
planned operations in France, which never got executed. LT Taylor trained with the
swimmer group and was the first to swim a mile underwater with the Lambertsen
breathing apparatus. Before deploying with L-Unit, however, he was sent to the
Mediterranean Theater as head of MU to set up a clandestine boat infiltration
operation."

Analysis of declassifed records from the OSS Archive (RG 226), indicate during his time
at AREA D, LT Jack Taylor (USN) was responsible for coordination with the United
States Coast Guard to identify vessels suitable for service by the OSS Maritime Unit for
training on the Potomac.  Based on the date of the photo and additional archived
records, the vessel in the background of the photo is possibly the MARIBEL or MARSYL.
The Coast Guard provided the necessary documentation and security which enabled
the MU to conduct clandestine maritime training and pioneered new equipment and
methods in the maritime environment that were exported to numerous theaters, but
primarily employed to the Mediterranean and China, Burma, India.  This is one of the
only known photos of AREA D on the Potomac.
AREA D TRAINING BASE for the Office of Strategic
Services Maritime Unit.  Spring/Summer 1943

Location: Potomac River, Across from Marine Corp
Base Quantico

Photo Source: The photo and quoted text were provided
courtesy of the Naval Special Warfare Foundation.  
http://www.nswfoundation.org/
The Simple Sabotage Field Manual was
used by the OSS Maritime Unit and
Operational Swimmer Groups to become
proficient in the use "tools, timing, and
targets" in the conduct of sabotage
operations.
Simple Sabotage Field Manual
used by OSS MU and OSG
to train and prepare for
Sabotage Operations.

Source: National Archive
Record Group 226-210-123