I found Robert on Ancestry.com in 2 minutes.
Name: Robert Loibl
Last Residence: 92054 Oceanside, San Diego, California, USA
BORN: 7 Jun 1910
Last Benefit: 92054, Oceanside, San Diego, California, United States of America
Died: Sep 1980
State (Year) SSN issued: California (Before 1951) Nothing on his wife.
So Loibl died at 70. Filthy genocidal monster Rachel Carson checked into the maggot motel at 56.