A sometime USN Captain, who worked with William F Friedman. Between 1948 and 1950 he was Director of Investigations in the "Naval Security Group" (NAVSECGRU).
Made a presentation at the 1972 symposium organised by Mary D'Imperio.
In 1976 he gave a paper in which he showed that the Voynich Manuscript must have been written by at least two different people.
His papers, on a Voynich Manuscript website, can be found here.
The Currier papers can be found here.
More information on the English and Spanish Wikipedia pages.