Joseph Trimbel Rothrock (1839-1922), US environmentalist. Rothrock studied botany at Harvard University (1862), and qualified as a doctor at the Unive


Joseph Trimbel Rothrock (1839-1922), US environmentalist. Rothrock studied botany at Harvard University (1862), and qualified as a doctor at the University of Pennsylvania (1867). As well as his medical practice and teaching at Penn State University, Rothrock took part in expeditions exploring British Columbia (1865-6) and the western USA (1873-5). He studied forestry at the University of Strasbourg, France, in 1880. Promoting the conservation of forests in Pennsylvania, he was Commissioner of Forestry for that state from 1895 to 1904, helping to establish state parks and forests. This photograph dates from 1919.


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Photo credit: © LIBRARY OF CONGRESS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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