David Kercher

David Kercher, Retired Mechanical Engineer at General Electric, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in mechanical engineering.

Robert Timmerman

Robert Timmerman, HVAC and Energy Consultant and Senior Mechanical Engineer at Process Facilities, Inc., has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in the field of mechanical engineering.

Jack R. Vinson, PhD, PE

Jack R. Vinson, PhD, PE, Professor Emeritus at the University of Delaware, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in engineering and higher education.

Mario Fontana

Mario Fontana, retired group leader at Advanced Concepts, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in engineering technology.