Relatives said the nephew's fiancée was the mother of three of the children who died. The other two children were siblings and friends of the family, visiting for the night for a sleepover, the relatives said.
Officials said the cause of the fire was under investigation. Arson investigators were at the scene Saturday, but officials said no foul play was suspected. State police said Sunday that no more information on the fire would be released until Monday.
Laura Cima, Gino's wife, said they owned the single-story, wood-frame house the couple was renting. She said the family had recently moved in and were busy painting and getting carpets cleaned. They shared a bedroom in the back of the house, and Laura Cima said the children were sleeping in a front room Saturday morning. She described an unused back bedroom where she and her husband saw flames pouring out of a window when they arrived Saturday.
Gray is a few miles outside Corbin, a city of about 7,000 in the foothills of Appalachia near the Daniel Boone National Forest and the borders of Tennessee and Virginia.
At the J&G market, a popular convenience store where the couple and the children frequently stopped to buy candy and milk, employee Amy Weddle had set out a jar on the counter asking for donations to help with funeral expenses.
"Everybody is very heartbroken over it. Everybody knows the Disney family," Weddle said. "They're always good to everybody."