Established by William F Friedman to conduct research into the Voynich Manuscript, and in existence 1944-6.

Some more information can be found here [1]. The website lists the known members as

  • Robert A. Caldwell
  • G. E. McCracken
  • Thomas A. Miller
  • Frances Puckett, later Frances Wilbur
  • Mark Rhoads
  • William M. Seaman

The minutes of the FSG can be found here [2]

Another mention here.

See also Second Study Group