Leland R. Johnson

Stanley Irving Auerbach
A founder of the science of radiation ecology and staff leader at Oak Ridge National Laboratory (ORNL), Auerbach was born in Chicago in 1921. He studied at the University of Illinois and Northwestern ... Continue Reading »
Persa Raymond 'P. R.' Bell
Oak Ridge scientist P. R. Bell advanced the art of scintillation spectrometry, using radioactive tracers scanned with a scintillator and collimator for medical diagnosis. Born in Fort Wayne, Indiana, ... Continue Reading »
Liane Brauch (1923- ) and William Lawson Russell (1910- )
The Russells, husband and wife, were leaders of mammalian genetics studies at Oak Ridge National Laboratory. Liane Brauch was born in Austria in 1923. She immigrated to the United States, enrolled in ... Continue Reading »
Alexander Hollaender
Alexander Hollaender, director of the Biology Division, Oak Ridge National Laboratory, and professor of radiation biology at the University of Tennessee, was born in Germany in 1898. He immigrated to ... Continue Reading »
Samuel Colville Lind
Called the father of radiation chemistry in America, Samuel Lind was born in McMinnville in 1879, the son of a Swedish immigrant and Union army veteran who practiced law there. He studied classics at ... Continue Reading »
Karl Z. Morgan
Called the "father of health physics," Karl Z. Morgan was born in North Carolina and studied physics at the University of North Carolina and Duke, earning his Ph.D. in 1934. He chaired the Physics Dep... Continue Reading »
Oak Ridge National Laboratory
Established during World War II by the Manhattan District, Oak Ridge National Laboratory (ORNL) occupied the X-10 site on the fifty-six-thousand-acre reservation between Clinch River and Black Oak Rid... Continue Reading »
Clifford Glenwood Shull
A Nobel laureate who pioneered neutron diffraction research at Oak Ridge, Clifford Shull was born at Pittsburgh, Pennsylvania, in 1915. He attended Carnegie Institute of Technology and New York Univer... Continue Reading »
Ellison Hall Taylor
Oak Ridge chemist and administrator since 1945, Ellison H. Taylor was born in Kalamazoo, Michigan, in 1913 and studied physical chemistry at Cornell and Princeton, earning his Ph.D. in 1937. After tea... Continue Reading »
U.S. Army Corps of Engineers
First established as an arm of the Continental Army, the U.S. Army Corps of Engineers has both military and civil missions. Since the Revolutionary War, it has provided topographic reconnaissance and ... Continue Reading »
Michael Kennerly Wilkinson
Michael K. Wilkinson, a solid state physicist at Oak Ridge National Laboratory, was born at Palatka, Florida, in 1921 and attended The Citadel and Massachusetts Institute of Technology, earning his Ph... Continue Reading »
Ernest Omar Wollan
Ernest O. Wollan, pioneer physicist in neutron diffraction, was born at Glenwood, Minnesota, in 1902. Wollan attended Concordia College and the University of Chicago, where he earned his Ph.D. in 1929... Continue Reading »
The unassuming building at Oak Ridge numbered X-10 housed the Graphite Reactor, the oldest nuclear reactor in the world. The Graphite Reactor was the world's first powerful nuclear reactor which ... Continue Reading »