Irish Terrier: the fearless redhead that carried messages across the trenches of the Great War

Summer of 1917, Western Front, the Ypres sector. A British signals corporal unclips the leash from his red-coated dog, fastens a metal cylinder holding a coded message to the collar, and whispers "Paddy, go." The animal launches into open ground through the mud and the shell craters, dodging projectiles and barbed wire, covers the roughly nine hundred yards between his trench and the next Allied position, and delivers the message to the receiving officer. That same dog will repeat the run four more times before nightfall. When the war ends, Lieutenant Colonel E. H. Richardson, founder of the British War Dog School, will write a line in British War Dogs (1920) that the breed has never forgotten: "More than one soldier is alive today thanks to the effort of one of these terriers." The Irish Terrier was one of three breeds the British army used as a trench messenger in World War I, alongside the Airedale and the Collie. The choice was deliberate: an intense red coat that stood out against the gray mud, a medium size that slipped under the wire, a top speed near 22 mph, real resistance to cold and damp, and a temperament that paired daring with obedience to the human command. A century later, the redhead from Cork is the same dog: reckless, loyal, intrepid. Irish breeders still call it, with affection, the daredevil.

Where does it come from?

The breed is documented in County Cork, in the south of Ireland, during the 18th century. Its original jobs were exterminating vermin on farms, watching livestock, hunting otters and badgers along riverbanks, and serving as a guard dog. Irish farmers prized working character over looks, so for the first decades the breed showed a range of colors and sizes.

Crossing with the Tan and Black Terrier, the Kerry Blue Terrier, and the Soft Coated Wheaten Terrier produced the modern type around the middle of the 19th century. The first national club was founded in Dublin in 1879, and the breed was the first terrier the British Kennel Club recognized as native to Ireland. The Irish Terrier Club of America was founded in 1896, and the AKC recognized the breed the same decade, placing it in the Terrier Group.

What does the breed look like?

Medium, slightly elongated, athletic, with no trace of heaviness. Males stand about 18 in at the shoulder and weigh around 27 lb; females are closer to 18 in and 25 lb. The body is proportionally longer than the Fox Terrier's, with clean lines, a deep chest, and muscular hindquarters.

The coat is the breed's signature: double, with a hard, wiry outer layer (like dense wire lying close to the body) and a soft undercoat. Accepted colors are bright red, golden red, and red wheaten. The deep red is traditionally considered the ideal, partly because wheaten-coated dogs tended to carry inferior coat texture. A small white patch on the chest is permitted, nothing more.

The head is long, with little stop, a strong jaw, small dark eyes, and small V-shaped ears folded forward. The beard and bushy eyebrows give it a determined expression. The tail is carried high. It was formerly docked, a practice that is now banned or heavily restricted across most of the US for cosmetic purposes and increasingly discouraged by veterinary bodies including the AVMA.

What is its temperament like?

Bold, loyal, tenacious, affectionate with the family core. The breed standard calls it the daredevil, and the label holds up in everyday life. It meets conflict without backing down, defends its territory effectively, and keeps a constant watch on its surroundings without nuisance barking.

With family it is very affectionate, patient with older children, playful with the humans it recognizes as its own. The loyalty is absolute and very demanding: the breed does not tolerate long stretches of solitude or being ignored for days at a time.

With other dogs, two qualifications matter. It usually shares a home well with a dog of the opposite sex if the introduction came early. With same-sex dogs, especially intact males, it leans toward confrontation. It is one of the more reactive terriers in this respect, and it needs careful placement in multi-dog homes.

With small animals (outdoor cats, rabbits, hamsters, chickens) the prey drive switches on with very high probability. A household cat raised alongside the puppy usually produces a stable coexistence.

Trainability is moderate. The dog is intelligent and picks up basic commands fast, but it wants a reason to comply. Positive reinforcement, short sessions, variety, and motivation are the standard path. Punitive methods break the bond and deepen the stubbornness.

What are the real health problems?

Condition	Detection
Hyperkeratosis of the foot pads	Clinical inspection
Cystinuria (SLC3A1 mutation)	Specific DNA test
Progressive retinal atrophy	Ophthalmologic exam, DNA test
Hypothyroidism	Hormonal bloodwork
Skin allergies	Allergy workup
Cataracts	Annual ophthalmologic exam

Hyperkeratosis of the foot pads (also called corny feet) is the genetic condition most historically tied to the breed. It thickens and cracks the pads, causes pain on walking, and predisposes to secondary infection. Responsible selective breeding has cut the prevalence significantly over recent decades, but serious breeders still monitor their lines.

Cystinuria is an inherited kidney disorder with a documented mutation in the SLC3A1 gene, described by Brand and colleagues in 2010 (Journal of Veterinary Internal Medicine). It produces urinary stones. A specific DNA test has been available since 2008, and the Irish Terrier Club of America supports screening through its health program.

Hip dysplasia is less common than in larger breeds. The documented average lifespan runs 13 to 15 years. This is one of the longer-lived terrier breeds in relative terms.

What about grooming?

The rustic coat demands specific technique:

• Brushing three times a week with a firm-bristle brush and a metal comb to clear tangles in the beard and eyebrows.
• Hand-stripping every 3-4 months to keep the harsh texture of the outer coat. Without it, the hair softens and the red color fades.
• Cosmetic trimming around the ears, eyes, and feet to keep a clean outline.
• Bathe only when needed, with a mild shampoo. Over-bathing strips natural oils and damages the coat texture.

Professional stripping in the US runs about $60-100 per session with a groomer who handles wire coats. Some owners learn the basic technique and do it at home.

The breed is a low shedder, almost non-shedding when stripped on schedule. It is a reasonable option for people with mild allergies.

How much exercise does it need?

A minimum of 90 minutes daily of varied physical activity, plus mental work. This is a working breed and it needs to spend energy: long walks, running, ball games, search games, agility, scent tracking. Without that load, you get destructive behavior, excessive barking, escape attempts, and separation anxiety.

It handles both cold and moderate heat well. In intense summer heat, shift activity to early morning and evening. It enjoys water, swims well, and many individuals love a dip in a river or at the beach.

It makes a fit companion for athletes (running, paced cycling, moderate-grade hiking) from about 18 months on, once the growth plates have closed.

What is family life like?

Excellent with active families that have prior experience with terriers or similar breeds. It is patient with older children, playful, protective. With very young children, supervise for the rowdiness of its play, not for any ill intent.

In single-dog homes it fits without trouble. In multi-dog homes, evaluate case by case, ideally pairing it with a dog of the opposite sex and socializing them together from puppyhood.

It suits a home with a well-fenced yard (it can clear a 4 ft fence and dig holes). It can live in an apartment if the owner delivers long daily walks; its active character argues against keeping it as a strictly urban dog with no structured activity.

What is training like?

Positive reinforcement and consistency from day one. The breed responds well to short sessions (10-15 minutes) that stay varied, with search games, basic agility, and functional obedience. It is stubborn but motivated by food and play.

Early socialization between 8 and 16 weeks is decisive, especially with other dogs and with small animals. Without that base, reactivity problems show up in adulthood that are hard to reverse.

Is the Irish Terrier right for you?

It fits if you are an athlete or live an active outdoor life, have time for plenty of daily exercise, and accept the cost of stripping. The breed rewards the owner who understands its working character. It does not fit if you wanted a couch dog, if your home already has another intact male, if you live in an apartment with no time for long walks, or if your yard is not well fenced.

How to get one in the US

Accredited breeders. The Irish Terrier Club of America maintains a breeder referral list and a code of ethics for member breeders. Active breeders are few. A puppy with registration papers, full health testing (cystinuria DNA, foot-pad screening, ophthalmologic clearance), and early socialization runs roughly $1,500 to $2,500 in 2026. Waiting lists of 6 to 12 months are common.

Adoption and rescue. Uncommon. The breed is not widely popular in the US and rarely shows up in general shelters. Breed-specific rescue networks do exist, often coordinating placements across regions, and the parent club can point owners toward them.

Frequently asked questions

Is it aggressive with other dogs? With same-sex dogs, especially intact males, it tends toward confrontation. With dogs of the opposite sex and good training, it usually coexists without problems. With small animals the hunting instinct switches on.

Is it suitable for families with children? Yes, with older children who respect the dog. With very young children, supervise for the rowdiness of its play.

Does it tolerate being left alone? Poorly. This is a strongly bonded breed that suffers when the family is away for long. More than 6 hours alone on a regular basis is not advisable.

How long does it live? 13 to 15 years on average. It is one of the longer-lived terrier breeds.

Does it shed a lot? No. With regular stripping, shedding is almost nonexistent. It is a reasonable option for mild allergies.

Irish Terrier quick reference

Block	Field	Value
Identification	Canonical name	Irish Terrier
	Other names	Irish Red Terrier
	Country of origin	Ireland (County Cork)
	AKC group	Terrier Group
	FCI standard	No. 139
	FCI group	3 (Terriers)
	FCI section	1 (Large and medium-sized Terriers)
Physical	Weight, males	27 lb (12.25 kg)
	Weight, females	25 lb (11.4 kg)
	Height, males	18 in (48 cm)
	Height, females	18 in (46 cm)
	Coat	Double, hard wiry outer, soft undercoat
	Accepted colors	Red, golden red, red wheaten
Health	Average lifespan	13-15 years
	Key conditions	Foot-pad hyperkeratosis, cystinuria, PRA, hypothyroidism
	Recommended pre-breeding tests	Cystinuria DNA, PRA, ophthalmologic, thyroid
Temperament	Energy	High
	Trainability	Moderate
	Barking level	Medium-high
	With children	Good with older children
	With same-sex dogs	Poor
	With small animals	Poor (hunting instinct)
Lifestyle	Daily exercise	Minimum 90 min
	Apartment-suitable	Yes, with long walks
	Heat tolerance	Medium
	Cold tolerance	High
	Professional stripping	Every 3-4 months
US market	Puppy price 2026	$1,500-2,500
	Waiting list	6-12 months
	Estimated annual cost	$1,400-2,000 (with stripping)