David Arthur Lienhart

David Arthur Lienhart, Geologist, Consultant, Laboratory Director at DAL Engineering Geologic & Petrographic Services, has been recognized by Marquis Who’s Who Top Engineering for dedication, achievements, and leadership in geology.

Rex D. Coppedge

Rex Coppedge, Geological Engineer, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in geological engineering.

Frank James Castaldi

Frank Castaldi, Environmental Engineer and Consultant, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in civil and environmental issues, industrial water and wastewater treatment.

Thomas F. Zimmie, Ph.D.

Thomas F. Zimmie, Ph.D., Professor of Civil and Environmental Engineering at Rensselaer Polytechnic Institute, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in engineering and higher education.