Nathaniel Furman worked on the Manhattan Project at Princeton University where he led the Analytical Group. This research focused on identifying uranium sources for nuclear weapons and was organized under the "Madison Square Area" of the "Manhattan District, Corps of Engineers." Researchers worked to identify uranium in ores and to purify and measure trace contaminants in uranium concentrates. This research continued at Princeton after the war until at least 1952 where Furman and his former student Clark E. Bricker worked on a U.S. Atomic Energy Commission project labeled "Fundamental Analytical Chemistry," project number AT-(30-1)-937 Scope I. In 1950 Furman served as an editor for Clement Rodden’s book, Analytical chemistry of the Manhattan project.

See also: 

Department of Chemistry Records - U.S. Manhattan Project Records

Wendell Long's Interview