Earlier this month, the couple donated over £1,000 to the Chartwell Unit for Cancer Services at the Princess Royal University Hospital,
Farnborough to buy two new reclining chairs. Mr Johns said: "This donation from family and friends is our way of saying thank you for the
care that they showed Stephen during his treatment. We have had huge support from family, friends and Crystal Palace Football Club
and will continue our fundraising work for both Bromley Hospitals NHS Trust and St Thomas's Hospital where Stephen was treated."
The former Coopers Technology College student, who worked for an international design company, collapsed the day before his birthday
in October and was diagnosed with cancer the next week.
Mrs Johns said: "It was just seven weeks after that he died. It was a complete shock. We knew he would have a battle on his hands but not for
one minute did we think he would not come through it.
"He was a fun and outgoing lad, he loved life."
Mr Johns did not show any of the traditional signs of the illness, but had had a niggling cough for over a year. His mother says he was
unlucky but believes more could be done to raise awareness. She said: "They need to stop putting an age on cancers. They say that bowel cancer is most
common in men aged 50 to 55 so that's the group they target. But when Stephen was in hospital, there was another 26-year-old there and bowel cancer in the under 30s has increased more than any other age group over the last seven years."
Bowel cancer is the second biggest cancer killer in the UK after lung cancer. Some 35,500 people will be diagnosed with the disease this year and
around half will die.