Mr Williams added that he could not discuss any details while the inquiry continued.
She added that the families wanted the inquiry to be conducted in a proper judicial manner.
The inquiry claimed its first political casualty Wednesday when a special adviser to Mr. Hunt resigned.
During the inquiry witnesses were given immunity from incriminating themselves, but that did not cover perjury.
"You have to remember at that time we were very young, " he told the inquiry.
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No date has been set for the inquiry, which will be held later this year.
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He said the inquiry's results would be passed to the International Maritime Organisation (IMO).
Eleanor Scott, Green MSP for Highlands and Islands, described the inquiry as a valuable opportunity.
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Mr Baxter said the inquiry was at an early stage and appealed for information.
Meanwhile, Lord Justice Leveson has summoned political blogger Paul Staines to appear before the inquiry.
Three police officers told the inquiry they didn't find any signs of foul play.
Once the inquiry is finished, the coroner's conclusions are expected in three to four weeks.
Some of the inquiry will be held in secret to protect intelligence sources and methods.
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So far the inquiry has examined evidence surrounding the deaths of Adam Strain and Claire Roberts.
The inquiry will make recommendations on media plurality, regulation and cross-media ownership by July 2012.
The inquiry's chairman is due to publish a final report in the new year.
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Earlier the court heard from Det Sgt Colin Lorimer, who was the inquiry officer.
The inquiry has already been told that aspects of Raychel's care were "confused and uncertain".
The inspector holding the inquiry will submit her report to Welsh ministers within seven weeks.
The inquiry led by Robert Francis QC criticised "every single level" of the health service.
Senator Ian Le Marquand said the inquiry would reopen if any new leads were uncovered.
Mr Meredith subsequently released what he said were draft submissions he had made to the inquiry.
The inquiry will look at religious groups, NGOs and state-care providers as well as government agencies.
The force said they had taken 140 witness statements as part of the inquiry.
William Boyce QC, representing the family, described elements of the inquiry as "a circus".
Rupert Murdoch is scheduled to appear Wednesday and perhaps Thursday morning at the inquiry.
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Mr McGuinness apologised for failing to respond to the inquiry's first four requests for a statement.
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It has written to families saying the inquiry is expected to take two years.
Police confirm a number of locations are also being searched as part of the inquiry.
He provided witness evidence to the inquiry, along with the police officers and independent witnesses.
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