that age/time frame would seem to fit with this guy:
California Marriage Index, 1960-1985
about Tresa M Parten
Name: Tresa M Parten
Age: 15
Est. Birth: abt 1949
Spouse Name: Duane A Berhow
Spouse Age: 18
Est. Spouse Birth: abt 1946
Date: 4 Jul 1964
Location: Los Angeles
And they had a son who died in 1992......hmmmmm.