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.

"DonateLife Week highlights the benefits that organ and tissue donation has for transplant recipients and their families.

"Rotary Clubs across Australia are supporting the 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."

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 dad Clinton eventually donated a kidney but it was touch and go if an adult kidney would even fit in the cavity," Mr Stack said. That fear quickly evaporated when, with 48 hours of the transplant 'he was flying'.