Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Earl Harding, left, chief operator at the Hefner plant, runs a water sample checking on chemical and bacteriological controls.
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Water samples are analyzed b...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mayor Carl Reherman and city...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Hydrogeologist, John Harring...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "At the controls, which guide...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Center, Earl Harding, 1519 N...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Earl Harding takes sip of Hef...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "A-H-H-H-H Earl Harding, fille...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Chemist-biologist Martin Stok...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Enter, at the Hefner station...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "John McReynolds, employee at ...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Marvin E. Foley, 3005 NW Park...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Water from the plants gets c...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "John McReynolds, employee at ...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "At right, Irvan Heydman take...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "(Lab worker) Bruce Kessler te...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Water samples are analyzed b...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mayor Carl Reherman and city...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Hydrogeologist, John Harring...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "At the controls, which guide...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Center, Earl Harding, 1519 N...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Earl Harding takes sip of Hef...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "A-H-H-H-H Earl Harding, fille...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Chemist-biologist Martin Stok...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Enter, at the Hefner station...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "John McReynolds, employee at ...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Marvin E. Foley, 3005 NW Park...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Water from the plants gets c...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "John McReynolds, employee at ...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "At right, Irvan Heydman take...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "(Lab worker) Bruce Kessler te...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Water samples are analyzed b...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mayor Carl Reherman and city...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Hydrogeologist, John Harring...