E. A. Pearson

M. E. Ober

M. E. Ober worked for the J.A. Jones Construction Company.

P.P. Springer

Springer worked at the 200 West Area at Hanford during the Manhattan Project.

P. T. Barnum

Margaret H. Sanderson

Margaret H. Sanderson was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.