TV host's DNA test reveals emotional family story stretching back centuries

TV host Peter Cardwell has stumbled into a family saga so gripping it could land its own documentary — all thanks to a simple DNA test that was meant to be a bit of fun. Instead, the emotional revelations have had viewers utterly hooked.

The TalkTV presenter tried the MyHeritage DNA kit live on air, expecting a few quirky ancestry nuggets. What he actually uncovered was a sweeping tale of kings, warriors, ancient migrations and a wartime heartbreak that visibly blindsided him — and everyone watching.

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Peter’s results read like a crash course in the genetic history of the British Isles. His breakdown showed 55.7% Scottish/Welsh ancestry, tying directly into the Ulster Plantation of the 1600s, when thousands of Scots settled in Northern Ireland. For Peter, it suddenly connected generations of family lore: his mother’s McLaren side, from Sixmilecross in County Tyrone, have long believed they descended from three McLaren brothers who arrived with King William of Orange in 1690. There’s even an 1894 newspaper clipping charting their arrival and battlefield exploits.

And the story didn’t stop there. Peter’s DNA also revealed 22.6% Irish and 17.6% English heritage, weaving together an identity shaped by every corner of the Isles.

MyHeritage’s Ancient Origins tool pushed things back even further, charting Peter’s lineage through Roman Britain and the turbulent eras that followed. His profile echoed Roman traders and soldiers, the slow collapse of the empire, and the rise of Germanic tribes who forged the Anglo-Saxon world. He also carried a strong 32.8% Insular Celt signature — a genetic link to the ancient peoples of Ireland, Scotland and Wales.

“It really is the history of the entire British Isles rolled into one person,” he said.

Then came the part that stopped everyone in their tracks.

Using MyHeritage’s historical records, Peter uncovered the story of his great-uncle, Sergeant Navigator Robert Charles McLaren, who served in the RAF during the Second World War. Robert was just 20 when he was killed in action in January 1944, on only his second operational mission. His body was identified by a silver cigarette case — a tiny but devastating detail that Peter said brought the loss “sharply into focus”.

The DNA test also connected Peter with 25,523 genetic matches worldwide, including close cousins in New Zealand. Among them were Ange Pearson and her father Bob, along with a third cousin, Russ McLaren, who once met Peter’s grandparents during a trip to Ireland in 1988. Reuniting those threads left Peter “overjoyed” — and eager to meet them all in person.

MyHeritage’s tech even built Peter’s family tree back eight generations and enhanced a photograph of his great-great-grandmother Annie Dunbar, restoring her image in full colour.

During the live reveal, Peter confessed he’d been nervous:

“I found it fascinating — an emotional experience, to be honest. There’s a lot about my family I didn’t know… and a lot of relatives I didn’t know.”

Viewers quickly jumped in with their own reactions. Penny wrote: “Your DNA results are similar to mine — I get DNA matches by email every week. Fascinating.” Michelle added: “Fantastic! I really enjoyed seeing this DNA testing. I hope you make new connections. I’m blown away.”