Editing Willard Libby (section)

==Personal life==
In 1940, Libby married Leonor Hickey, a [[physical education]] teacher.<ref name="TIME" /> They had twin daughters, Janet Eva and Susan Charlotte, who were born in 1945.<ref name="NNDB" />

In 1966 Libby divorced Leonor and married [[Leona Woods|Leona Woods Marshall]], a distinguished [[nuclear physicist]] who was one of the original builders of [[Chicago Pile-1]], the world's first [[nuclear reactor]]. She joined him at UCLA as a professor of [[environmental engineering]] in 1973. Through this second marriage he acquired two stepsons, the children of her first marriage.<ref name="NNDB" /><ref name="obituary">{{cite news |url=https://www.latimes.com/archives/la-xpm-1986-11-13-me-24930-story.html |title=Leona Marshall Libby Dies; Sole Woman to Work on Fermi's 1st Nuclear Reactor |date=November 13, 1986|first=Burt A. |last=Folkart |access-date=April 16, 2013}}</ref>

Libby died at the [[UCLA Medical Center]] in [[Los Angeles]] on September 8, 1980, from a blood clot in his lung complicated by [[pneumonia]].<ref name="obit">{{cite news |newspaper=[[Washington Post]] |title=Willard Libby Dies, Noted For Carbon-14 Research |url=https://www.washingtonpost.com/archive/local/1980/09/10/willard-libby-dies-noted-for-carbon-14-research/b5aa834e-763d-418b-b762-9cfe7f5077d5/ |access-date=July 29, 2015 |first=Martin |last=Well |date=September 10, 1980 }}</ref> His papers are in the [[Charles E. Young Research Library]] at UCLA.<ref>{{cite web |url=http://www.oac.cdlib.org/findaid/ark:/13030/kt9j49q5hh/dsc/ |title=Finding Aid for the Willard F. Libby Papers |access-date=July 28, 2015 }}</ref> Seven volumes of his papers were edited by Leona and Rainer Berger and published in 1981.{{sfn|Libby|1981}}