John Franklin Carll (1826-1904) - Pleasantville, PA
Posted by: 
vhasler
N 41° 35.443 W 079° 34.643
17T E 618571 N 4605312
Early petroleum engineer who established several standard practices for the industry.
Waymark Code: WMADFF
Location: Pennsylvania, United States
Date Posted: 12/31/2010
Views: 8
Marker Text:
Pioneer petroleum geologist and engineer, Carll originated many standard oil industry practices, including accurate drilling records, correlating and mapping sub-surface reservoir rocks, and explaining the increased productivity resulting from reservoir flooding. In the 2nd Geological Survey of Pennsylvania (1875), he provided basic explanations of northwestern Pa. surface and subsurface geology. He lived and worked here from 1864 until his death.
Marker Name: John Franklin Carll (1826-1904)
County: Venango
Date Dedicated: 10/23/2007
Marker Type: Roadside
Location: 205 E State St., Pleasantville
Category: Business & Industry, Science & Medicine, Oil & Gas, Professions & Vocations
Website: [Web Link]
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