William Penn (Photo Courtesy of Pennsylvania State Archives)
Time Period: 1644-1718
Vocation: soldier, humanitarian; called "the greatest law-giver the world has produced" by Thomas Jefferson
Hometown: Pennsbury Manor, Bucks County
Environmental Accomplishment: Wrote the first conservation law requiring the preservation of one acre in five

John Bartram (Photo Courtesy of Historic Bartram’s Garden)
Time Period: 1699-1777
Vocation: Botanist to England’s King George III; farmer
Hometown: Darby, Delaware County
Environmental Accomplishment: the Father of American Botany

John James Audubon (Photo Courtesy of the Boston Museum of Science)
Time Period: 1785-1851
Vocation: Taxidermist, portrait painter, music and fencing instructor
Hometown: Mill Grove, Montgomery County
Environmental Accomplishment: Premier painter of the birds of North America

Joseph Trimbel Rothrock (Photo Courtesy of Pennsylvania State Archives)
Time Period: 1839-1922
Vocation: explorer, surgeon, botanist, professor
Hometown: McVeytown, Mifflin County
Environmental Accomplishment: The Father of Pennsylvania Forestry

Mira Lloyd Dock (Photo Courtesy of Pennsylvania State Archives)
Time Period: 1853-1945
Vocation: photographer, lecturer
Hometown: Harrisburg, Dauphin County
Environmental Accomplishment: Helped transform Pennsylvania’s capital from a dingy railroad/industrial town into a model city

J. Horace McFarland (Photo Courtesy of Pennsylvania State Archives)
Time Period: 1859-1948
Vocation: printer, photographer, author and rosarian
Hometown: McAlisterville, Juniata County
Environmental Accomplishment: The Father of the National Park Service

Gifford Pinchot (Photo Courtesy of Pennsylvania State Archives)
Time Period: 1865-1946
Vocation: politician, governor of Pennsylvania
Hometown: Milford, Pike County
Environmental Accomplishment: America’s first trained forester, first "conservationist"

Rosalie Barrow Edge (Photo Courtesy of Hawk Mountain Sanctuary)
Time Period: 1877- 1962
Vocation: Crusader for Women’s Right to Vote; pioneer conservationist
Hometown: New York City
Environmental Accomplishment: Founder of Hawk Mountain Sanctuary, Berks and Schuylkill counties

Otto Emery Jennings (Photo Courtesy of the Jennings Environmental Learning Center)
Time Period: 1877-1964
Vocation: Director of the Carnegie Museum, professor of biological Sciences at the University of Pittsburgh,
Hometown: Pittsburgh, Allegheny County
Environmental Accomplishment: Most influential naturalist in western Pennsylvania’s history

Ralph Elwood Brock
Time Period: 188?-1958
Vocation: Private nursery entrepreneur
Hometown: Pottsville, Schuylkill County
Environmental Accomplishment: Graduate Forester of the Pennsylvania State Forest Academy’s first class of 1906; later, became the nursery superintendent at the Mount Alto State Forest Nursery

Basse A. Beck (Photo Courtesy of Deb Beck)
Time Period: 1896-1974
Vocation: newspaper general manager, radio station owner
Hometown: Sunbury, Northumberland County
Environmental Accomplishment: Advocate for controlling acid mine drainage and returning migrating fish to the Susquehanna and other rivers

Jerome Irving Rodale (Photo Courtesy of Rodale Press)
Time Period: 1898-1971
Vocation: publisher
Hometown: Emmaus, Lehigh County
Environmental Accomplishment: Advocate for sustainable agriculture

Ivan McKeever (Photo Courtesy of the McKeever Environmental Learning Center)
Time Period: 1902-1992
Vocation: Soil Conservationist
Hometown: Renick, West Virginia
Environmental Accomplishment: Pennsylvania’s "State Conservationist for the U.S. Soil Conservation Service (1946-1968); assisted with the establishment of the Maurice K. Goddard State Park and Lake Wilhelm; established the McKeever Foundation to support research and scholarships for college students.

Rachel Louise Carson (Photo Courtesy of Rachel Carson History Project)
Time Period: 1907-1964
Vocation: Writer, scientist, ecologist
Hometown: Springdale, Allegheny County
Environmental Accomplishment: Wrote numerous books including Silent Spring (1962); challenged the practices of agricultural scientists and government; called for a change in the way humankind viewed the natural world.

Maurice K. Goddard, PhD. (Photo Courtesy of Pennsylvania State Archives)
Time Period: 1912-1995
Vocation: forester, educator, public servant
Hometown: Camp Hill, Cumberland County
Environmental Accomplishment: Pennsylvania’s first Secretary of Environmental Resources

Ned Smith (Photo Courtesy of the Ned Smith Center)
Time Period: 1919-1985
Vocation: self-trained artist and naturalist
Hometown: Millersburg, Dauphin County
Environmental Accomplishment: Created thousands of astonishingly accurate drawings and paintings of wildlife

Richard James (Photo Courtesy of the Schuylkill Center for Environmental Education)
Time Period: 1935-1998
Vocation: high school and college teacher, biologist, columnist for local newspapers, radio and television host
Hometown: Hanover, York
Environmental Accomplishment: First executive director of the Schuylkill Center for Environmental Education in Philadelphia

Kristine M. Anderson
Time Period: 1961-1999
Vocation: Elk County Recycling Coordinator
Hometown: Kersey, Elk County
Environmental Accomplishment: Outspoken proponent of sound, proactive environmental solutions