An Indiegogo fundraising page for him created by the activist raised nearly £10,000 in just half an hour. Nineteen hours later, it had passed £33,000.
On Friday, a photograph taken by a member of the campaign showed Mr Attar smiling tenderly at his daughter as he handed her a brightly-coloured ice cream.
“I wanted to do something that could help this one man who is struggling through the world,” said Mr Simonarson. “I couldn’t believe what happened next.”
Organisers said the funds would be dispensed to the family through a local refugee charity, possibly in instalments. When Mr Attar was informed of the rising donation total, he told a member of the campaign: “I want to help other Syrians”.