503d PIR

Bob Flynn
Paul Whitman




The 503d Parachute Infantry Regiment's soldiers were already combat veterans by the time they made their jump on Corregidor. The 503d was selected to participate as part of the "ROCK FORCE" because of their three previous combat jumps in New Guinea and because of their convenient location within the Pacific Theater. These airborne assaults occurred in the Markham Valley in September 1943 and Noemfoor in July 1944. However the situation in the Pacific did not always call for the 503d to parachute in to fight as an infantry unit. Often they served as conventional infantry. In June 1944, the 503d undertook ground assaults at Hollandia in June, Leyte in November, and Mindoro in December. These battles, leapfrogging across the Pacific, were critical to General MacArthur's overall plan to push the Japanese Imperial Army from the region. Shortly after their first jump at Nadzab, a small village in the Markham Valley of New Guinea, the 503d adopted the "descending wildcat" to become their official insignia. The 503d proudly wore their "wildcat" during the next two years. It was only after the unit's successful liberation of Corregidor, that the symbolic "Rock Patch", created by one of the unit's own men, was adopted for wear on the sleeve as a unit patch.  

The "Wildcat Patch",  which was soon shortened to "Cat Patch", had been dreamed up by the Walt Disney Studios some time shortly after 7 Dec 1941, and several paratroop units adopted similar Disney based patches.  The backgrounds remained the same, and the number of the unit was added, so the design was hardly unique to the 503d.

 Les Hughes, currently the webmaster of the American Society of Military Insignia Collectors (ASMIC) recalls several variants of the cat patch, as during his years as a collector he's had at least two examples of the version on a felt square, each coming directly to him via a veteran of the 509 Parachute Infantry Battalion.  He's not seen any examples suggesting the patches were used by any unit other than the 503rd, but leaves the issue open. Of his examples, one was  embroidered on a light-blue felt square (see below)  and the other fully-embroidered on a disk (see table).  The cat is colored differently in the square and disk versions, but the cat is the same.  The disk version also exists, he says,  with both an embroidered border and an olive drab wool border.  He recalls seeing the fully embroidered disk versions in two sizes. 

The Cat Patch - The most original version is on blue felt

"The 503d never had an official shoulder patch, and they still do not for that matter."

John Lindgren  


  Les says that the 509 had a well know patch of its own ("the Gingerbread Man"), made in Italy and approved for wear by the men locally, but never approved by the Army.  He considers it unlikely that the Army would ever formally approve a design executed by Disney as an official patch, as "the Institute of Heraldry was rather rigid in the types of symbolism it would allow.

Whilst this might have been the case for the larger Army units, the use of cartoon characters was widespread for Army Air Force squadrons, which sported versions of almost every popular cartoon character (326th - Alley Oop; 401st Bombardment - Hairless Joe; 155th Photo Recon - Sylvester the cat; 11th Bombardment - Mr. Jiggs.)  A very fine example is the official unit patch of the 597th Bombardment, which was...

" Over and through a light yellow disc, BUGGS BUNNY proper seated on the left wing of a caricatured grayed green aircraft, holding aloft a carrot proper with the left forepaw, and shoving a tan and brown aerial bomb off a wing tip with hind feet. (Approved 20 Dec 1943). 

 How might veterans of the 509th  come by the 503d's Cat Patch?  "Well," Les says, "the 509th began its existence as the 504th Parachute Battalion, the fourth and last independent parachute battalion of the Army's fledgling airborne forces. When the Army realized the inadequacy of an airborne force of only four battalions and began forming its parachute units into regiments, the 504th Battalion became the 2nd Battalion, 503rd PIR.  As the 2/503 PIR, the unit was deployed to England in June 1942, where it trained for the Army's first airborne operation of WWII: a drop on North Africa.  Just prior to deploying to North Africa, the unit was redesignated 2/509, and later, when the decision was made not to complete the regiment, it became the 509th Parachute Infantry Battalion.  Anyway, it seems clear to me that the 509 vets had the "cat patch" by virtue of their having once been part of the 503d.  This also tends to date the patch - at least the square version - probably to early 1942." 

Whilst early versions could have been seen in Africa in 1942, the cat patch was in wide SWPA use certainly by Nadzab.  Elden "Buzz" Campbell also made reference to wearing the "cat patch" on the leather flight jacket while serving in Nadzab.

Don Abbott, who was an early Battalion member is 'almost certain' that it was not an official patch, and he cannot ever recall wearing it on his Class A uniform, or ever seeing it there. He recalls only sewing it onto one of the old field jackets but nowhere else. Verne White, who was not an old-timer with the 503rd when he was seriously wounded on Corregidor,  wore the Cat Patch proudly on his Class A's on his return to the US, through to his discharge in July '45.  "Nobody told me it was not an official patch and it did draw a lot of favorable comment during that 4-5 month period.

 Bob Flynn  & 
Paul Whitman

It is well documented elsewhere that local commanders had the authority to approve insignia worn by the troops in their command for "local wear".  Nothing "official" was necessary.  Bob Flynn recalls a photograph  of Harris Mitchell , wearing a leather flight jacket with the "cat patch" sewed to the left breast of the jacket, sitting in an orderly room busily engaged in writing. 

This practice was the basis for the stand which Bob took in the research of the "Rock Patch" painted by Tom Mc Neill on Mindoro following the Corregidor campaign. Hugh Breslin criticized Bob's committees' findings in a letter to the Static Line about a year ago. Bob says "General Jones approved the "Rock Patch." He told me this at the reunion in Little Rock. He also stated that he asked Bill Bossert to improve the drawing of the eagle on the Rock Patch." The fact that field commanders can approve insignia "for local wear," is well documented.  So, there you have some leads. Those of you who know Buzz or Harris can easily satisfy your intellectual curiosity. Copy us in on what you find. 



Q: Thanks for your excellent site on the cat patch.  I am in awe of the 503rd! Can you tell me if the cat patch in its 3 inch diameter was ever worn as a shoulder patch or was it just worn as a chest patch on A-2 jackets? Were other variations worn as shoulder patches?

Mike Beaumont

A:  The cat patch and leather A-2 jacket shown on the website belongs to me. To my knowledge the patch was worn only on the front of the A-2 jacket. I don’t recall ever seeing one used as a shoulder patch.  There are more than a few variations of the patch shown but none were ever worn on the shoulder in my memory. The "Rock" patch was commonly used in this manner and the "Sixth Army" logo was on the opposite shoulder. Thank you for your interest in my proud unit…

    Capt. Jim Mullaney
    C.O. Company "H"
                                                                  503d Parachute Regimental Combat Team











Corregidor Then and Now

Don Abbott

The Lost Road

Battlebook - Corregidor

Bulletin Board / Feedback Forum

503d PRCT Heritage Bn.

Gerry Riseley

Combat Over Corregidor

Japanese Unit & Troop Strength

503d WWII Honor Roll

Rock Force

William T. Calhoun

Amid th' Encircling Gloom

Ft. Benning Monographs


Coast Artillery Manila & Subic Bays

John Lindgren

The Rock Patch

503d PIR as a Case Study

Rock Force Honor Roll

4th Marines on Corregidor

George M. Jones

By Order of Maj. Kline

Engineers' Report - Corregidor

Site & Navigation Info

Bless 'Em All

James P. Lowe




503d PRCT Assn Official Website

Robert W. Armstrong




Concrete Battleship

Verne White

1936 Corregidor Map

503d Jump at Nadzab

by Article Title

Battle of Manila

Jim Mullaney

2/503 Vietnam Newsletter

Cleaning Up Corregidor

by Author Name

Fall of the Philippines


1945 Jump Map

Interview - Clevenger

by List of Recent Articles 



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Last Updated: 29-12-13


The Cat Patch of Richard Ellis Gruver is courtesy of Todd Mayer