Stefan, 29, has been a firefighter for 10 years.
A post on Gainsborough Fire Station’s Facebook page said: “When it comes to charity the people of Gainsborough never let us down.
“Everyone at Gainsborough Fire Station would like to say a massive thank you to everyone who came to donate for charity and you have raised £580.
“Well done Gainsborough.”
The money being raised is to help Stefan get to over to a clinic in Germany or the Charring Cross hospital in London to undergo immunotherapy treatment.
To make a donation visit www.gofundme.com/stefan-hawcroft-the-bravest-man.