Howard T. Parr

Leo J. Mulligan

Olga D. Nelson

Olga Nelson was a staff worker at Los Alamos during the Manhattan Project.

George Kistiakowsky

George Kistiakowsky (1900-1982) was a Ukrainian-American physical chemist.  He joined the Manhattan Project in late January 1944, leaving his role as chief of the National Defense Research Committee’s Explosives Division.

F. E. Donoghue

Donoghue worked in the United States Engineer District Office.