Interview with J. Frank Rollins, an oilman and a geophysicist, concerning his work experience with Petty Geophysical Engineering Company doing refraction seismic work; his employment with Geophysical Service, Inc.; doing reflection and refraction work in 1936; oil exploration in South America; work in oil field instrumentation equipment; work as a "computer" interpreting geological data; founding of Rayflex Exploration Company in 1948; technological developments for oil field exploration; geochemical surveying; the sale of Rayflex to Phillips-Eckhart in 1962; his work as a geophysical consultant; the application of oil field technology to national defense; German espionage activity in South America during World War II; and pro-German activity in South Louisiana during World War II.

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000

Index map for Newton County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:166,732.

Parent map for Newton County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:27,500.

Parent map for Orange County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:10,000.

Parent map for Orange County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:10,000.

Parent map for Orange County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:10,000.

Parent map for Newton County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:27,500.

Parent map for Newton County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:27,500.

Parent map for Orange County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:10,000.

Index map for Orange County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:65,557.

Parent map for Newton County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:27,500.

Topographic map of a portion of Texas and of Louisiana from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000

Topographic map of a portion of Texas and of Louisiana from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000