Harold E. Froehlich
"For the American politician, see Harold Vernon Froehlich Harold Edward "Bud" Froehlich (July 13, 1922 – May 19, 2007) was an American engineer who helped design "The Alvin", deep-diving exploratory submarine used to find a lost atomic bomb and explore the wreck of "The Titanic". Froehlich was born in Minneapolis, Minnesota. He graduated from the University of Washington and earned a master's degree in aeronautical engineering from the University of Illinois at Urbana-Champaign. He died of heart failure in Maplewood, Minnesota.