Fred Libby was born on October 20, 1915, in Hopedale, Massachusetts, USA.
Libby Scheier died in 2000.
Libby Thompson died in 1953.
Libby Waye died on 1951-06-10.
Steve Libby died on 1935-03-31.
I do not think Libby Riddles is dead yet
George D. Libby died on 1950-07-20.
Willard Frank Libby died on September 8, 1980 at the age of 71.
Steve Libby died March 31, 1935, in Milford, CT, USA.
Libby Holman died on June 18, 1971, in Stamford, Connecticut, USA of suicide - carbon monoxide poisoning.
Ida Libby Dengrove died on April 13, 2005, in Los Angeles, California, USA of complications of Alzheimer's disease.
Fred and George do not both die only Fred dies.