The grieving daughter of one of the US golfers who died in Victoria's worst aviation accident in 30 years has described him as an intelligent and kind man and "a really good dad".
On Wednesday, 67-year-old Texas retiree John Washburn, was confirmed by his daughter, Davis Griffin, as the fifth victim of the doomed flight.
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"He was thoughtful, and he's calm, and he's kind," Ms Griffin told local media in Houston.
"He was really, really smart. And he was a really good dad."
"He was pursuing what he loved to do," Ms Griffin said, according to Click2Houston.
"And he was pursuing his passion, so I guess I get some comfort."
Mr Washburn was an executive and general counsel at Sammons Enterprises in Dallas until he retired several years ago.
He joined three golfing buddies from the US, who were flying to King Island to play golf, when they were killed alongside pilot Max Quartermain, as their Beechcraft King Air crashed into the DFO shopping centre and burst into flames about 9am Tuesday.
![John Washburn, from Texas, was among the victims of the Essendon Airport disaster.](/web/20170311212207im_/http://www.smh.com.au/content/dam/images/g/u/i/9/3/j/image.related.articleLeadwide.620x349.guivfc.png/1487806758771.jpg)
The crash, which occurred shortly after the plane took off from Essendon Airport, has been described as Victoria's worst aviation accident in 30 years.
Tributes for the US tourists – Greg De Haven, Russell Munsch, Glenn Garland and Mr Washburn continued to flow on Wednesday.
![The four golfing buddies.](/web/20170311212207im_/http://www.smh.com.au/content/dam/images/g/u/i/9/2/4/image.related.articleLeadwide.620x349.guivfc.png/1487806758771.jpg)
The golfers' family members and their Texas businesses described the victims as successful businessmen and passionate golfers, and the White House offered their condolences to the victim's families.
Irene Gould, who is the sister of the pilot's widow, Cilla Quartermain, said Ms Quartermain was "really struggling" in a Facebook post on Wednesday.
"Such an incredibly sad time for my sister, Cilla and the family," Ms Gould posted.
"Please pray for Cilla and the children that they will find some comfort and peace in this horrific situation.
"Good bye Max you were a very special man and a brilliant pilot."
The wives of the US golfers had travelled with their husbands in Australia and had reportedly planned a day trip to the Great Ocean Road, while their husbands played golf on King Island.
The White House's press secretary passed on Donald Trump's condolences to the families of the victims.
Spokesman Sean Spicer told reporters at the start of a White House press conference on Wednesday (Melbourne time) that "the President's thoughts and prayers are with the families of the victims and the US embassy and consulate are ready to provide necessary and appropriate assistance."
In an eerie development, Glenn Garland, former chief executive and co-founder of energy consulting company CLEAResult, expressed his fear of flying in a Facebook post days before the crash.
"Laurie [Mr Garland's wife] about to board. How can she be so calm when I'm worried about needing an extra pair of underwear," he wrote.
In another post, on the same day, he wrote "only burned 5000 calories of anxiety on the flight over. Beats a five-hour one way bus ride".
Mr De Haven was a US Army veteran and retired FBI agent, who had spent 30 years as a member of the agency.
Mr De Haven's sister Denelle Wicht said he is survived by his wife, three children and six grandchildren.
Mr Garland was "an inspirational leader" in the energy-efficiency industry, said a spokeswoman from Mr Garland's energy consulting company, CLEAResult.
Mr Munsch was a founding partner of Texas law firm Munsch Hardt, before he retired, and was described by a spokeswoman from the firm as a "lawyer's lawyer; one of the best of all time".
He worked on high-profile bankruptcy cases, including "as bankruptcy counsel to Nelson Bunker Hunt in what is still considered the largest personal bankruptcy proceeding in history".
"Russ was enjoying retirement, and doing what he loved almost more than practicing law – playing golf".
Victorian Police Superintendent Michael Frewen said police had a "key role" in maintaining the welfare of the victims' families.
"We are working closely with the US consulate and multiple victim support services. WE've got denior-ranking representatives with the families working through the difficult time with them," he said.