The couple’s connection to Ben and Casey Affleck is being called into question by viewers

The Secret Lives of Mormon Wives‘ Zac and Jen Affleck’s family tree is under scrutiny.

After the Hulu reality series premiered, viewers wanted to know more about the connection between the Utah Affleck family and their supposed cousins, Ben and Casey Affleck. However, online genealogy sleuths say that the ties just aren’t there.

On the show, Jen says her father-in-law, David Affleck, is the cousin of the famous brothers. Jen first addressed Zac’s familial ties to the Gone Girl star in a TikTok shared in September 2022, shortly after Ben and Jennifer Lopez got married in Vegas and she took the actor’s last name.

Jennifer and Zac Affleck

Jennifer and Zac Affleck.Jennifer Affleck/Instagram

“When you thought you were going to be the next JLO. But instead … she stole your name & you’re busting it down to Ms. Rachel,” the MomTok star wrote alongside a video of her dancing to “Wheels on the Bus.”

A source familiar with the Utah Affleck family tells PEOPLE exclusively that the relationship between the Utah Afflecks and the Boston Afflecks “is absolutely not true.”

“There’s no relationship. I just don’t think that’s very fair about that either,” the source explains, noting that the Mormon faith takes genealogy very seriously.

Zac and Jen Affleck; Ben Affleck attends the "AIR" world premiere during the 2023 SXSW Conference and Festivals at The Paramount Theater on March 18, 2023 in Austin, Texas.

Jen and Zac Affleck (left), Ben Affleck.Jen Affleck/Instagram; Michael Loccisano/Getty

“So Zac Affleck is her husband. [His father] is David Affleck. Zac’s grandfather is Gordon Affleck. Zac’s great-grandparents — which would [establish] second cousins — his name is Alan Burt Affleck. Then Ben’s dad is Tim Affleck. His grandfather is Myron Junior. His great-grandparent is Myron Senior. No, Alan Burt and Myron Senior aren’t brothers or anything,” the source claims.

A look back at each side’s family tree shows that while Zac’s family has ties back to England, Ben and Casey Affleck’s relatives date back to Scotland.

Reps for Jen and Zac and Hulu declined to comment on the matter. PEOPLE has also reached out to representatives for Ben and Casey Affleck.

Ben Affleck and Casey Affleck attend the premiere of Amazon Studios' "Manchester By The Sea" on November 14, 2016 in Beverly Hills, California.

Ben Affleck and Casey Affleck attend the premiere of Amazon Studios’ “Manchester By The Sea” on November 14, 2016 in Beverly Hills, California.Todd Williamson/Getty

Of why more details on their family connection haven’t come out sooner, the source believes Zac and Jen might be “overwhelmed” by their sudden fame. “This isn’t their cup of tea,” the source notes. ” I would imagine, knowing them that they’re just hoping this will all die down … and not be anything.”

While talking exclusively to PEOPLE in September 2024, Jennifer revealed that she and Zac have “never met” the Good Will Hunting actor. “Zac’s dad has [met them], when [Ben] was very little,” she added. “I’m hoping to meet him one day, too!”