engineer; Emeritus Professor at the University of Texas at Arlington M Robert Engel Machol (1917–1998), early American systems engineer Richard J. Mayer (born 1952), American engineer, developer of IDEF family of modeling languages John S. Mayo (born 1930), American engineer; seventh president of Bell Labs Harold Mooz (born ca. 1932), INCOSE systems engineering pioneer (2001); author of Visualizing Project Management (1996) and Communicating Project Management (2003); contributing author to The Wiley Guide to Managing Projects (2004); recipient of the CIA Seal Medallion Philip M'Pherson (1927–2016), British systems engineer; founder of the Department of Systems Science at City University George Mueller (1918–2015), American engineer; associate administrator of NASA during Apollo Program; pioneer of the "all-up" testing concept N James G. Nell (born 1938), American engineer; principal investigator of the Manufacturing Enterprise Integration Project at the National Institute of Standards and Technology (NIST); known for his work on enterprise integration O Hermann Oberth (1894–1989), Romanian/German space pioneer; derived basic rocket equations and described in principle all features of rockets and space stations still valid today; author of Die Rakete zu den Planetenraeumen (1923) and Wege zur Raumschiffahrt (1929); mentor of Wernher von Braun Tuncer Őren (born ca. 1935), Turkish/Canadian systems engineer; professor emeritus of Computer Science at the School of Information Technology and Engineering (SITE) of the University of Ottawa P Bradford Parkinson (born 1935), American professor of Aeronautics and Astronautics at the Stanford University; recipient of the Simon Ramo Medal for leading the concept development of GPS Samuel C. Phillips (1921–1990), USAF general; Director of NASA's Apollo Manned Lunar Landing Program R Simon Ramo (1913–2016), American physicist, engineer, and business leader; led development of microwave and missile technology; sometimes known as the "father of the ICBM" Eberhardt Rechtin (1926–2006), American systems engineer and respected authority in aerospace systems and systems architecture Allen B. Rosenstein (1920–2018), American systems engineer and Professor of Systems Engineering at the University of California at Los Angeles S Andrew P. Sage (1933–2014), School of Information Technology and Engineering, George Mason University; recipient of the 2000 Simon Ramo Medal for outstanding contributions to the field of systems engineering; series editor of a textbook series on systems engineering and management for John Wiley & Son Robert Seamans (1918–2008), NASA Deputy Administrator and MIT professor Joseph Francis Shea (1925–1999), systems engineer on the Titan I ballistic missile; head of the Apollo Spacecraft Program Office Nikolai Sheremetevsky, Advisor to Director, All