The families of the yachtsmen will travel to the US Embassy to meet the homeland attache after their meeting at the Foreign Office, Paul Goslin's niece Gemma Townsend said.
Ms Townsend said the families would be offering their thanks for the resumption of the search.
She said she did not know the name of the person due to meet them.
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The private school teacher pleaded guilty to 11 incidents dating back to the 1970s and 1980s.