1. Associate Professor, Dept. of Geology and Environmental Geosciences, Bucknell Univ., Lewisburg, PA.
2. Research Student, Dept. of Geology and Environmental Geosciences, Bucknell Univ., Lewisburg, PA; presently, Geophysicist, U.S. Army Corps of Engineers, Sacramento, CA.
3. VP of Engineering, Geo-Solutions, New Kensington, PA.
4. Research Student, Dept. of Geology and Environmental Geosciences, Bucknell Univ., Lewisburg, PA; presently, Project Geologist, Wilcox & Barton, Inc., Boston, MA.
5. Research Student, Dept. of Geology and Environmental Geosciences, Bucknell Univ., Lewisburg, PA; presently, Project Analyst, Light-Heigel & Associates, Inc., Palmyra, PA.