John C. Gaffney — From Pearl Harbor Enlistment to OSS Operations in Yugoslavia

This is a summary pulled from the 2002 dated 34 page hand-written first-person narrative from John Gaffney to his son John.

S/Sgt John Gaffney was one of the WWII Office of Strategic Services (OSS) Secret Intelligence (SI) / 19th Weather Squadron Parachute Detachment personnel that operated in Yugoslavia and the OSS HQ in Bari, Italy.

S/Sgt Gaffney was on the island of Vis, along with Warrant Officer Harold Guth and Master Sergeant Mike Ragus.

Enjoy!

RESPECT

GBA

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Introduction

Staff Sergeant John C. Gaffney’s wartime service began almost immediately after the attack on Pearl Harbor. Leaving his senior year at the University of Southern California, he enlisted in the Army Air Corps within days and was called to active duty on December 15, 1941.

Initially assigned within a bomb group headquarters, he soon transitioned into weather operations as the Army reorganized its meteorological personnel into dedicated weather squadrons in 1942. During this period, Gaffney worked closely with fellow weather personnel, including Sergeant Roy Dudley, a senior forecaster who would later serve as a Warrant Officer with the OSS detachment.

These early professional relationships—formed in places like Oklahoma and later Pueblo—would prove important as the war progressed.

In early 1943, Gaffney deployed overseas aboard the transport Robin Sherwood, enduring a long and hazardous journey through submarine-threatened waters, severe storms, and global transit routes that carried him through the Panama Canal, across the Pacific, and into the Middle East. By the time he arrived in theater, he had evolved from a newly enlisted soldier into a trained weather observer—eventually serving with the 19th Weather Squadron and later participating in OSS-supported operations in Yugoslavia.

19th Weather Squadron Foundations (1943–1944)

By mid-1943, John C. Gaffney was serving as a weather observer overseas as part of the 19th Weather Squadron. This transition placed him within a specialized network responsible for meteorological support across a vast operational area.

The 19th Weather Squadron’s area of responsibility at that time extended across North Africa, the Middle East, and key transit routes supporting operations into Europe and Asia. Upon initial deployment overseas in early 1943, Gaffney served in Eritrea and later became the senior weather observer at Accra, British West Africa (now Ghana).

Volunteer for Special Duty and OSS Selection (Late 1943–1944)

By late 1943, with Allied forces advancing, the 19th Weather Squadron issued a request for volunteers for a mission “possibly involving parachute jumping.” Gaffney submitted his name.

Shortly thereafter, Mike O’Meara, another member of the 19th Weather Squadron earmarked for OSS duty, arrived in Accra carrying orders for movement to Cairo—orders that included Gaffney. This moment marked the transition from conventional weather operations to special operations assignment.

Within days, Gaffney and O’Meara were en route to Cairo, where Gaffney entered a pipeline that would move him into OSS-controlled operations.

Parachute Training in Palestine

From Cairo, Gaffney was sent to a Royal Air Force base near Nazareth (Ramat David), where he joined a mixed Allied training class that included British Long Range Desert Group personnel.

Training included multiple parachute jumps:

• Initial jump at 1,000 feet
• Subsequent jumps at 400 feet
• Final night jump

During one jump as the lead exit, Gaffney’s static line wrapped around his arm, nearly dislocating his shoulder. Despite the injury, he maintained control and completed the landing—demonstrating the level of discipline required for the mission ahead.

OSS Training in Cairo

Following parachute qualification, Gaffney returned to Cairo and entered OSS training, located near the Pyramids. There, he received instruction in:

• Explosives
• Clandestine communications
• Underground resistance coordination

During this period, he was assigned an OSS agent name and number, formally placing him within the special operations framework.

Deployment to Italy (June 1944)

Gaffney’s orders to Italy were dated June 6, 1944—the day of the Normandy invasion. He was sent to Bari, the OSS hub for Balkan operations.

After a brief period of staging and additional radio training near Caserta, he received orders for deployment into Yugoslavia.

Insertion into Yugoslavia — Vis (Maritime)

Unlike many OSS personnel trained for parachute insertion, Gaffney reached Yugoslavia by small boat, landing on the island of Vis.

There, he joined a small weather detachment consisting of:

• Warrant Officer Guth
• Master Sergeant Ragus

Their station was located in a valley where a makeshift runway had been carved from a vineyard to support damaged Allied aircraft returning from bombing missions.

Weather Operations Under OSS Control

Operating under OSS coordination, the team conducted continuous meteorological reporting in support of Allied air operations.

Their work included:

• Launching hydrogen-filled weather balloons
• Tracking upper-level winds
• Transmitting coded weather reports to Italy

Conditions were austere:

• Supplies arrived roughly every 10 days
• No refrigeration
• Frequent need to improvise and share resources

Gaffney’s ability to communicate with locals—using a form of Italian derived from his Latin studies—allowed the team to coordinate with civilians, who baked bread from shared supplies.

Life on Vis and Enemy Threat

The team lived in small tents on the hillside under constant threat:

• German aircraft regularly probed the island
• Attacks often timed during gaps in Allied fighter coverage
• Environmental conditions were harsh, including persistent vermin

Despite these challenges, the team maintained uninterrupted reporting.

Witness to Tito’s Departure

During Gaffney’s time on Vis, Allied aircraft arrived and Partisan forces assembled. A senior figure—later confirmed to be Josip Broz Tito—boarded one of the aircraft and departed for Italy to meet with Winston Churchill.

This placed Gaffney present during a key moment in the coordination between Allied leadership and the Yugoslav resistance.

Decoding the Closure Order

Later, the team received a coded message from Italy that could not initially be deciphered by his teammates.

Monitoring on an auxiliary set of earphones, Gaffney transcribed the message independently. His version allowed the team to interpret the instructions. Using his OSS credentials, he requested clarification and received orders to:

• Shut down the Vis weather station
• Return equipment to Italy

This marked the end of their mission in Yugoslavia.

Return to Cairo and End of OSS Phase

After returning from Yugoslavia, Gaffney was reassigned to Cairo and placed in charge of a weather team.

Within a month, he was hospitalized with hepatitis, bringing his period of OSS field operations to a close.

Additional Observations from Gaffney’s Account

Gaffney’s own recollections provide further insight into the nature of his service:

• He remained uncertain whether supplies to Vis arrived by ship or aircraft, reflecting the fragmented nature of OSS logistics
• He worked directly alongside members of Tito’s Partisan forces
• His earlier connections—including men like Dudley and O’Meara—demonstrate how preexisting relationships carried forward into wartime special operations assignments

Summary

John C. Gaffney’s service illustrates the evolution of selected 19th Weather Squadron personnel from conventional meteorological roles into clandestine OSS-supported operations behind enemy lines.

His experience—from parachute training and OSS instruction to field operations on Vis—demonstrates how weather specialists became critical enablers of Allied airpower and intelligence operations in the Balkans.