Long Island Kevin McMahon discovers he was switched at birth at Jamaica Hospital after sister takes Ancestry.com DNA test

In New York, a man from Long Island had a nagging feeling all his life that something was off – he suspected he might not belong to his own family. Then, his sister decided to take a DNA test, and his suspicions were confirmed – he had been switched at birth.

“My siblings used to tease me, saying things like ‘maybe you’re the mailman’s child’ because I looked so different from them,” Kevin McMahon disclosed. “It was a light-hearted joke, but it turned out to be true.”

McMahon’s younger siblings were fair, had straight hard hair, blue eyes and freckles. McMahon had none of those traits.

“If this had happened nowadays, my parents would have noticed right away that something was amiss,” he mused. “They would have seen that the baby they brought home was completely different from them and questioned it immediately.”

It was May 1960, at Jamaica Hospital, when Kevin McMahon was issued a birth certificate ending in 2710.

Ross McMahon was born within hours, with his birth certificate ending in 2711.

The infants were switched at birth. McMahon is now suing Jamaica Hospital.

“They’re completely responsible,” McMahon said. “They made one calamitous mistake, and it just changed the entire course of my life.”

Jamaica Hospital declined to comment.

“They’re two Caucasian mothers with the same last name, in their 30s, that both gave birth to baby boys at the same hospital on the same day within two hours of each other,” said attorney Jeremy Schiowitz.

McMahon, pictured to the left in the photo below, found out when his sister Carol received her Ancestry.com results, which revealed an unknown biological brother.

The brother standing next to Carol is Ross, the other baby McMahon switched at birth.

Ross is really Kevin, and Kevin is really Ross.

“She was so fearful, so anxious about telling me,” said Kevin McMahon about when his sister told him. “When she told me, I couldn’t process information, I’m like, I feel nothing. Like, I honestly, I have no feelings here. I think I was in sort of a state of shock at that point.”

Cece Moore is a genetic genealogist at Parabon Nanolabs, and has been featured on “Finding Your Roots” on PBS, and on the ABC series “Genetic Detective.”

She says she’s seen dozens of cases like these in the U.S.

“It’s so incredibly sad that we’re seeing so many surprises like this through direct-to-consumer DNA testing,” she said.

For Kevin McMahon, it answers the long-held question of why it always felt like he was treated differently than his siblings.

“You know, even with that knowledge, it feels like it’s too late for me,” he said. “It doesn’t change anything. It doesn’t change my insecurities.”

Copyright © 2025 WABC-TV. All Rights Reserved.

You May Also Like
Colon cancer was just the beginning: Doctors alarmed as 14 OTHER cancers rise sharply in young people

Medical Experts Concerned as Rates of 14 Other Cancers Surge in Young People Following Rise in Colon Cancer

Doctors are sounding the alarm over the escalating cancer epidemic among young…
Chicago-born Pope Leo XIV celebrates first Mass as pontiff in Sistine Chapel

Pope Leo XIV, who was born in Chicago, holds his first Mass as pontiff in the Sistine Chapel

CHICAGO (WLS) — Pope Leo XIV is just beginning his first full…
Earth-shattering event that happened while four Americans were locked away from the world for three months that NONE could believe happened

Unbelievable event occurred while four Americans were isolated from the world for three months

A new game show has been introduced by Fox News that involves…
Chicago police shooting in Hammond, Indiana leaves suspect dead after car crash near Dearborn Avenue and Gostlin Street: CPD

CPD reports a suspect killed in a car crash following a police shooting in Hammond, Indiana near Dearborn Avenue and Gostlin Street.

HAMMOND, Ind. (WLS) — Chicago police shot and killed an aggravated battery…
US city rocked by back-to-back earthquakes amid growing fears ancient fault is reawakening

Ancient fault suspected of reawakening triggers consecutive earthquakes in US city.

New Mexico was rocked by back-to-back earthquakes just five minutes apart. The…
Columbia suspends anti-Israel agitators after takeover, spreading of pamphlets glorifying alleged terrorist

Columbia University suspends individuals promoting anti-Israel views and distributing glorifying materials about an accused terrorist following a recent incident.

Columbia University has taken action against 65 students who were involved in…
The new Pope's bling: A £500,000 ring, priceless clifftop retreat, luxurious Vatican apartments and bullet-proof pope-mobile set to be bestowed on Leo XIV

Leo XIV to receive lavish gifts: £500,000 ring, cliff-top retreat, Vatican apartments, and bulletproof vehicle

The upcoming pontiff, Pope Leo XIV, is soon to acquire the invaluable…
Tufts University student detained by ICE granted bail by federal judge

Federal judge grants bail to Tufts University student detained by ICE

Rümeysa Öztürk, a Tufts University student, was recently granted bail by a…
‘Doctor Odyssey’ Episode 17: A Tidal Wave And A Tsunami Of Guest Stars Including Jim O’Heir and Christopher Gorham

Exciting new guests Jim O’Heir and Christopher Gorham in Episode 17 of ‘Doctor Odyssey’: A Story of Waves

If this really is the end for Doctor Odyssey, Ryan Murphy is…
‘Nonnas’ True Story: Meet the Real Joe Scaravella From Enoteca Maria Who Inspired Vince Vaughn’s Netflix Movie

“Get to Know the Authentic Joe Scaravella from Enoteca Maria, the Inspiration Behind Vince Vaughn’s Film on Netflix: The Real Story of the ‘Nonnas'”

The new movie Nonnas on Netflix tells a touching story about grandmothers…
Justin Bieber reveals 'the truth' about his wellbeing and admits he's 'asking God for help' in worrying post

Justin Bieber shares insights on his health and confesses to seeking divine assistance in a concerning message

Justin Bieber finally revealed the truth about his wellbeing in a string…
Who is Lorna on ‘9-1-1’? Season 8, Episode 17’s Callback Explained

Explaining the Callback of Lorna on ‘9-1-1’ in Season 8, Episode 17

In the recent episode of Season 8, Episode 17 of “9-1-1,” the…