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.

Drahomir Lazar

Drahomir Lazar, Retired Naval Officer and Aerospace Engineer at Ryan Aeronautical and Northrop Grumman Corporations, has been recognized by Marquis Who’s Who Top Engineers for dedication, achievements, and leadership in military and aerospace engineering.