The 31-year-old suffered 97 per cent burns to her body after Rowan Baxter doused her and her auto with petrol before setting the vehicle alight on Wednesday.
More than 200 people gathered outside Parliament House in Brisbane to support the Red Rose Foundation, and rallies were also held in regional centres including Cairns, Townsville and Mackay.
Her children Aaliyah, 6, Laianah, 4, and Trey, 3, died in the auto fire.
The day after Ms Clarke's murder, Mr Farmer posted on Facebook about the "unease" shared among her friends about "what Rowan might do".
"If only we could have got her out of this situation earlier. It was just an incredibly powerful moment". PERCEPTION IS POWER; the more he convinced the public of the love for his children and you the more he was able to exercise his coercive control by isolating you and manipulating others into perceiving him as being a good partner.
Ms Clarke was remembered as selfless and courageous.
While she last saw Rowan "a long time ago", she says the horrific murders have left the family shell-shocked. I've never had a stray dog on my property.
"You should all know how strong she was, she fought so hard".
A sea of flowers, soft toys and notes were laid at the vigil where Hannah Clarke's family spoke.
Dressed in pink - Ms Clarke's favourite colour - her father Lloyd Clarke and brother, Nat, thanked the crowd for their support.
'We would certainly have really felt shed without all yoursupport I do not recognize exactly how we can settle such compassion, ' the troubled papa stated.
"We were at a family barbecue and he was at the grill and I walked over to him and he was sending hundreds of texts to other women", Taylor told Daily Mail Australia.
"For those who did know Hannah, she was the most wonderful person you could ever meet", Hannah's brother Nathaniel Clarke said.
"She's obviously touched so many lives, a lot more than what we thought, it was lovely to see the love and everything from the whole city", Mr Clarke said.
Demi Lovato says unresolved eating disorder led to 2018 relapse
She also revealed that she not worn a pair of jeans in a very long time because they don't make her feel good about herself. I thought the past few years were recovery from eating disorders when it actually was just falling into it.
During Thursday's press conference, Inspector Thompson confirmed police had received reports of domestic violence before Rowan Baxter killed his estranged wife and her three children.
Past 7 days, the 42-year-previous murdered his 3 little ones and wife Hannah Clarke in a intentionally lit auto or truck fireplace before fatally stabbing himself.
The vigil, held at Whites Hill State College in Camp Hill where Hannah went to school, just down the road from her parent's house, was attended by a large cross-section of the community who came together to remember the courageous mother.
Hannah's family said she was living life stepping on eggshells and was petrified, adding that Baxter even controlled what she wore.
"Don't back away from your friends for the sake of convenience".
Domestic Violence NSW chief executive Joanne Yates says every year three-out-of- four women who access homelessness services are fleeing violence.
Baxter rejected his lawyer's advice during a mediation session with Clarke and refused to sign the order that would allow him 165 days of custody per year.
"He obtained the young children back again but he wished 50-50, that was it", a supply instructed the ABC.
He additionally altered his social media sites account photos to a picture of Hannah in paradise with angel wings together with her youngsters, which is prominent amongst mourners.
The Prime Minister said Ms Clarke's family had "every right to be angry" that family violence services and policies did not prevent the tragedy.
"They will not be forgotten as your love and support will also never be forgotten".
Phone the police on 111 or ask neighbours of friends to ring for you.
Don't stop to get anything else. Crisis line 24/7 0800 742 584 • Ministry of Justice: www.justice.govt.nz/family-justice/domestic-violence • National Network of Stopping Violence: www.nnsvs.org.nz • White Ribbon: Aiming to eliminate men's violence towards women, focusing this year on sexual violence and the issue of consent.
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