When Tina Gibson was a baby herself, a couple of strangers were trying to do what her parents had just done–have a child. They did IVF and had some leftover embryos.

Now, 27 years later, those embryos have made Gibson and her husband Ben proud parents. Their daughters, 3-year-old Emma Wren and Molly Everette, born in October 2020, are full genetic siblings who started out as embryos frozen in 1992. Through embryo adoption they ended up being implanted in Gibson’s womb decades later.

According to researchers at the University of Tennessee Preston Medical Library, Molly has now set a record as the longest-frozen embryo to end up being born. The previous record was held by her sister, whose embryo was frozen for 24 years.

“Once it hit the news with Emma Wren, that was the first time it hit us that maybe this was a big deal,” Gibson tells The Washington Post.

“Molly was conceived and frozen [almost] 28 years ago, only a year and a half after Tina herself was born,” Mark Mellinger, marketing and development director for the National Embryo Donation Center (NEDC), tells PEOPLE, calling the making of this family “pretty amazing.”