The Dunsdon boys touched community hearts when their dad, Mark Dunsdon, 41, died in their Silverwater home after a house fire in July.

Community leaders rallied behind the family and set up a trust to accept donations for Zachariah, Talon and Marcus, aged nine, and seven-year-old Solomon.

Trust spokesman Col Roach said $72,000 had been raised.

Mr Roach said the money had been invested for the boys' future and the trustees were committed to keep helping them.

"Many businesses, community groups, schools and private individuals in our area and beyond have showed great generosity and compassion," Mr Roach said.

"It restores your faith in human nature when you see the ways people have come to the family's assistance."

The boys live with their grandmother, 72-year-old Carole Dunsdon, at Windermere Park.

Mrs Dunsdon described the community's response as unbelievable. The boys had received toys, bikes, cash and household goods.

"A fella came and put an airconditioner in for free," she said.

Some donations had arrived anonymously.

A fraternal organisation, the Masons, is paying for the boys' school expenses and a Morisset hairdresser cuts their hair for free.

Mrs Dunsdon was teaching the boys to pass on generosity.

"They had a Playstation donated, so they donated an old Xbox they weren't using to a neighbour with young children," she said.

"The lady burst into tears and said 'isn't that nice'."

Mrs Dunsdon said she received wonderful help from family and neighbours, but added that raising four boys was not easy.