National Museum of Nuclear Science & History
H. L. Roland worked for the Midwest Piping and Supply Company.
George Mahfouz joined the Manhattan Project in 1943 when he was offered a job at the Houdaille-Hershey nickel plant in Decatur, Illinois.
Ethel Ann Caylor was a nurse at the Los Alamos Hospital. She worked here from 1944 to 1945. While not much is known of Caylor’s work, it is believed that she was assigned to the maternity ward.
Pef worked for Stone and Webster Engineering Corporation.
