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They got their names from the 'Mercury Seven', the first 7 Americans to go into space. They were

  • Scott Carpenter
  • L. Gordon Cooper Jr.
  • John H. Glenn Jr.
  • Virgil "Gus" Grissom
  • Walter Schirra Jr.
  • Alan Shepard Jr.
  • Donald Slayton.

It was never anticipated that superheroes called Walter and Donald would catch on, which is why these names are left out of the Thunderbirds brothers.

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13y ago

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