Add to ORKGPhotograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles Mankin, director of the Oklahoma Geological Survey at the University of Oklahoma, member of the board of mineral resources of the National Academy of Science.
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Bob Millspaugh Oklahoma City...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Irving Perrine consultin...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Carl C. Branson, director...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles J. Mankin, Direc...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles J. Mankin, direc...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Charles J. Mankin, direct...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Charles Mankin, director ...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles Mankin, professo...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles Mankin, Director...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles J. Mankin, profe...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Charles J. Mankin, direct...
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Dr. Charles Mank...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. C. J. Mankin, of O. U. h...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles Mankin, O. U.
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Charles J. Mankin, assist...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Bob Millspaugh Oklahoma City...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Irving Perrine consultin...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Carl C. Branson, director...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles J. Mankin, Direc...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles J. Mankin, direc...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Charles J. Mankin, direct...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Charles Mankin, director ...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles Mankin, professo...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles Mankin, Director...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles J. Mankin, profe...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Charles J. Mankin, direct...
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Dr. Charles Mank...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. C. J. Mankin, of O. U. h...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles Mankin, O. U.
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Charles J. Mankin, assist...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Bob Millspaugh Oklahoma City...
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Irving Perrine consultin...
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Carl C. Branson, director...