And it's personal.

The Rotary Club of Taree on Manning member's six year old grandson Jack Wilson continues to defy the odds following a successful kidney transplant from his father Clinton.

Jack's journey has inspired Mr Stack to drive the conversation around increasing the number of donors as chair of the Australia-wide National Donate Life Week committee.

The committee has written to all 1100 Rotary clubs around Australia urging them to take the lead in improving the numbers.

"If every registered organ and tissue donor found one person who wasn't and encouraged them to register, we would double the number of potential donors on the Australian Organ Donor Register," Mr Stack said.

"This year Rotary is calling on all registered donors to find their plus one for DonateLife Week 2019.

"DonateLife Week is a key event that highlights the benefits that organ and tissue donation has for transplant recipients and their families in Australia.

"Rotary Clubs across Australia are supporting the DonateLife Week campaign by encouraging families to register and discuss their organ and tissue donation decisions to help save more lives.

"Organ and tissue donation is the ultimate gift. You can save and improve the lives of many people as an organ and tissue donor.

"While many Australians agree with donation, only one in three has registered on the Australian Organ Donor Register.

"Registration is so important because it leaves your family in no doubt of your decision to save lives as an organ and tissue donor," he said.

Jack was born six years ago in Newcastle with a congenital disease of the kidneys.

Within a week of his birth he was in intensive care and would spend the next 18 months in and out of hospital in Newcastle and Sydney.

"His kidneys were not functioning and his condition was likely to get worse with his kidneys eventually failing," Mr Stack said.

"He was on dialysis in hospital and at home.

"His dad Clinton eventually donated a kidney but it was touch and go if an adult kidney would even fit in the cavity."

However, that fear quickly evaporated when, with 48 hours of the transplant 'he was flying'.

That inspired Mr Stack to get in contact with the Organ and Tissue Authority where he initially wanted to seek changes in the legislation covering organ and tissue donations.

"But I soon realised that the best solution was simply to get more people to register on the donate life register," Mr Stack said.

"Everyone needs to talk about organ and tissue donation.

"Your family needs to know your wishes to be a donor and we also encourage you to chat to 'a plus one' - a colleague, neighbour, teammate or other relatives and encourage them to register too.

"With 1400 Australians currently on a waiting list for a life-saving transplant and a further 11,000 on dialysis, we're asking people in our community to make their decision count and join the Australian Organ Donor Register.

"It's so quick and easy to register online at donatelife.gov.au and it's a decision that can save lives."

Mr Stack said Jack continues to thrive and has become a creative, adventurous kid who is becoming a bit of a leader.

"With Clinton's donation, we would have known what Jack's future was going to be," he added.

To register your donation decision on the Australian Organ Donor Register, visit donatelife website.

DonateLife Week kicks off on Sunday, July 28 through to August 4.