Richland Operations Office 
 
SERIES TITLE Hanford Engineer Works, Project Historical Files 
 
 
INCLUSIVE DATES 1943 1947 
 
 
ARRANGEMENT Subject 
 
 
VOLUME 1 cubic foot 
 
 
DESCRIPTION 
The series documents the early history of the Manhattan District, particularly the 
Hanford Piles Project. It includes the diaries of Col. F. T. Matthias, the Manhattan 
District history book, and the Hanford Engineering Works project history. The Matthais 
diaries contain information related to meetings with D. Cooksey and Dr. Joseph 
Hamilton of the Lawrence Radiation Laboratory. The series consists of correspondence, 
manuscript drafts, descriptions of experiments, photographs, project completion reports, 
and military diaries of day to day operations. A box index is available. Box 
number C00309. 
 
 
LOCATION OF RECORDS 
Records Holding Area 
715 Swift Blvd. 
Richland, WA 99352