On Sunday, Zachary's father Keith Mitchell told how the couple had come to their decision.
"Jade had been holding Zachary for about one or two minutes when she asked a midwife if she could do something to help others," said the 38-year-old.
"She was very generous and donated Zachary's heart valves.
"We received a letter about two weeks ago from the Organ Transplant Team telling us that one of Zachary's valves had been used on a child with a genetic heart condition.
"This saved a child's life, which was the best thing that could have happened in our situation."
Keith, a marketing director, said he was the one who broke the tragic news of Zachary's passing to Jade in what was the hardest thing he has ever had to do.
"To tell Jade after the delivery when she had been waiting for her baby to be wrapped up and brought to her was traumatic," said Keith, at the family home in Windsor, Berks.
"We're still deeply sad with grief. We lost our first child. He was growing for nine months and we only got to know him for such a short time."
A three-day inquest has explored how Zachary died in hospital.
Ultra scans had shown tiny Zachary pointing shoulder-first in his mother's womb when doctors decided to carry out a complicated emergency operation.
It was not clear when he had moved into this unusual position, the inquest in Windsor was told on Thursday.
A doctor, who was offering an independent opinion on the case, claimed that the caesarean procedure might have led to Zachary's death.
Consultant neo-natologist Janet Rennie, of University College London, told Mr Bedford that Zachary suffered a brain injury and that skull fractures could have happened when the operation was being carried out by doctors.
His head was adjusted by hand and he was delivered within minutes of his mother going under the surgeon's knife.
Dr Rennie said moving the baby's head was likely to have caused his brain to swell and skull to fracture.
She said these injuries were unlikely to be caused by his head impacting on his mother's pelvic bone during labour.
Giving evidence she said: "It is unlikely that the injuries were caused during the starting period of contractions. It is more likely the problem occurred during the manipulation of his head.
"It was the difficulty in the delivery of Zachary. That is the key."
Professor Tim Draycott, a consultant obstetrician from North Bristol NHS Trust, said the operation was performed correctly by Dr Shaila Banu.
Berkshire Coroner Mr Bedford read the expert's report aloud, which stated the eight-minute operation was within range given Ms Awdry was slim and having her first caesarean.
"Eight minutes after skin incision and four minutes after the uterus was opened does seem reasonable and justified," he said.
"The outcome was tragic but it does not follow that the management and delivery was sub-standard." Both experts agreed the procedure was extremely complicated and unusual.
Post-mortem examination results showed Zachary suffered an acute hypoxic ischaemic brain injury, with skull fractures also present.
The inquest has heard that expectant mother Ms Awdry complained of bleeding to midwives before she lost her baby after a complicated caesarean birth almost six hours later.
She was bleeding from her vagina and having regular contractions every three minutes at home when she phoned two different midwives asking their advice.
She was told by midwife Sarah Foulsham to take a bath and ring back if her bleeding worsened and contractions became heavier.
By the next phone call more than two hours later, she had turned the bath water bright red. Another midwife told her to come into the maternity unit immediately.
Ms Awdry eventually had the emergency operation an hour and 24 minutes after she was first admitted to Wexham Park Hospital in Slough., Berks.
Zachary was born at 4.03am and his father Keith, and two midwives heard the baby letting out a small cry.
However Dr Banu and Dr Rachel Ruddock, who performed the resuscitation, noticed no cry or gasp of breath.
Tragically Zachary was described by the doctors as "pale, floppy and not breathing."
Despite resuscitation attempts he was certified dead at 4.26am on November 8, 2010.
The inquest had heard from Julie Watson, head of midwifery at Wexham Park Hospital, who told the hearing that there was a "missed opportunity" during Ms Awdry's care.
Ms Watson said the patient should have been seen by a senior doctor and had the operation sooner if the information about her bleeding had been passed on.
She said that phone calls from pregnant mothers to midwives were now logged in one place and was viewed by doctors from patent's notes.
However, the coroner said that he believed this was unlikely to have made a difference in the tragic outcome.
Giving a narrative verdict, Mr Bedford said: "Zachary was born alive, albeit for a fleeting period.
"Delivery of baby Zachary was technically difficult but there was no evidence that the management or method of delivery was inappropriate.
"Expert opinion described baby Zachary as suffering hypovolaemic shock.
"This was most likely as a result of impaired blood flow to the brain which can be explained by a combination of compression of Zachary's head before delivery, but also from damage to the bridging veins during manipulation of baby Zachary in the course of delivery.
"Such trauma is a recognised complication of a difficult vaginal delivery even where the delivering team apply only reasonable force and methods."