Francis Edward Butler
Francis Edward Butler was born on 29 August 1924 in Alberta, Canada. He received his bachelors of mechanical engineering from Howard University in 1950 and a certificate in project management from Rensselaer Polytechnic Institute (RPI) in 1969. Butler was a project manager at the Naval Ordnance Laboratory in White Oak, Maryland, from 1951-1966 and was a research and management engineer for the US Naval Ordnance System Command in Washington.
Butler was a member of ASME and NSPE and won the Torpedo Signal Award in 1956. He was awarded U.S. patent #2,803,807 for audible underwater signalling, #2,912,929 for drill mine Mk 50-0, #2,991,441 for a watertight electrical connector, and #3,086,464 for a detachable practice mine session.