Lawrence Frerric Krenzien was born on September 14, 1933 in Green Bay, Wisconsin. Lawrence married Marjorie on August 28, 19559 and they had two children: Kevin Roland and Brian Lars.

Krenzien has a bachelor of science degree in physics from the University of Wisconsin.

Krenzien waorked at the Los Alamos Scientific Laboratory from 1955 to 1963. Then Krienzien worked on the North American Aviation Apollo Project from 1963 to 1964. Krenzien worked at the Los Alamos National Laboratory (LANL) from 1964 to 1993.