Isaac Halpern

C. E. Telzrow

C. E. Telzrow worked for the H. K. Ferguson Company.

Willard W. Dikeman

Ruth C. Boe

Ruth Boe worked at the Met Lab in Chicago from November 1943 through June 1945.  She was in Farrington Daniels’ division, in the graphite research section.

H. P. Graves

Graves worked in the United States Engineer District Office.