An adult and five children who were killed in an Ohio house fire on March 3 have been identified as mother Brooke Gordon and her five children: Zayden, 10, Hudson, 8, Ashton, 6, Bostyn, 2, and Tomlyn, 9 months

Tommy Allen Jr., Gordon’s fiancé and the children’s father, survived and is being treated for "serious injuries," according to a GoFundMe established after the tragedy

GoFundMe organizer Pamela Hauck told CBS-affiliate WKRC-TV that she had a close relationship with the family

The adult and five children who were killed in an Ohio house fire earlier this month have been identified.

The fire was reported at 6:40 a.m. on Tuesday, March 3, a spokesperson for the Clinton County EMA previously confirmed to PEOPLE.

One male adult survived and was transported to a nearby hospital.

The victims of the fire have been identified as mother Brooke Gordon and her five children: Zayden, 10, Hudson, 8, Ashton, 6, Bostyn, 2, and Tomlyn, 9 months,” according to a GoFundMe page organized by Pamela Hauck after the tragedy.

Tommy Allen Jr., Gordon’s fiancé and the children’s father, was identified as the surviving adult.

Hauck wrote in the description for the fundraising page that “tragedy struck the Clarksville, Ohio community when a devastating house fire claimed the lives of” the six family members.

“The loss is unimaginable, and the heartbreak is felt deeply by everyone who knew and loved this family,” Hauck continued.

Allen Jr. suffered serious injuries and is being treated at Miami Valley Hospital, but he has a long road ahead, Hauck shared.

“In the wake of this tragedy, Tommy faces not only the overwhelming grief of losing his family but also the daunting challenges of recovery and rebuilding his life. The funds raised through this campaign will go directly toward funeral expenses for Brooke and the children, as well as helping Tommy secure housing and meet essential needs as he heals,” Hauck wrote.

“Thank you for standing with Tommy and honoring the memory of Brooke, Zayden, Hudson, Ashton, Bostyn, and Tomlyn,” her fundraiser description concluded.

The fundraising page has raised over $57,000 as of publication time, over half of its $90,000 goal.

Hauck told CBS-affiliate WKRC-TV that she was close with the family before tragedy struck. “They've been to birthday parties at my house. They swam in my pool. They are my two grandchildren's only cousins. And now my grandchildren are the only grandchildren, which breaks my heart. Breaks my heart to no end,” she said.

“I've never seen as good a mama to that many children as Brooke. She was fabulous. She was fabulous,” the family friend added.

The news outlet reported that eight firefighters were injured on the scene of the fire.

“Because of the breadth of the fire and also the structural fragility and degradation of the house at the time, they were unable to make it up the steps," Clinton County EMA Director Thomas Breckel said.

Officials for Clinton-Massie Local Schools previously said in a statement that three of the victims were students in the district.

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“We know that tragedy affects not only families, but also classmates, staff members, and the broader community. Our schools are closely connected places, and moments like this are felt deeply by many,” the district said.

An investigation into the origin and cause of the fire is currently underway, the Ohio Department of Commerce told PEOPLE.

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