While Jethro was in Starship, the foundation provided a place for his family to take a break from the hospital and to store their belongings when they travelled back to Whanganui for a short break.
Jethro has collected nearly 700 beads of courage through the foundation.
Chiet said treatment for this type of cancer in children, such as Jethro, who have Down syndrome is really effective.
"He went into remission really quickly and then it was just a case of him trying to survive his treatment."
When they returned home, the support co-ordinators continued to assist the family, with a local support co-ordinator following up on Jethro's progress and linking them up with other families as part of a support group.
"They link you up with counselling or whatever you need and over time it becomes social support with regular meet-up with other families," Chiet said.
Jethro also received help through the foundation's personal development grant.
"We had contact with lots of charities during our time and if there were any that I would say were amazing it was the Child Cancer Foundation and the Ronald McDonald House who actually made a big difference," Chiet said.
Jethro is still in remission and no longer needs a lot of support from the foundation but he and his mother remain keen advocates of its service.
Chiet will take to the streets on February 28-29, with the help of the Whanganui ANZ branch staff and the local New Zealand Cadet Forces, to collect funds as part of the annual Child Cancer Foundation street appeal.
On Friday, February 28, they will be outside Countdown Victoria Ave and ANZ on Victoria Ave and on Saturday, February 29, outside Countdown Victoria Ave, Pak'nSave, New World and Trafalgar Square.
Donations can also be made by texting CHILD to 3457 to donate $3 or visit childcancer.org.nz
All funds will go back to the foundation to help support children like Jethro get through their cancer journey.
Anyone who wants to volunteer as a collector can contact Jo Chiet on 027 207 5315.