As per her sister, Joan Finzer:

Deceased Classmate: Barbara Finzer
Date Of Birth: 04-23-1942
Date Deceased: 10-05-2012
Age at Death: 70
Cause of Death: congestive heart failure
Classmate City: Harrison
Classmate State: MI
Classmate Country: USA
Was a Veteran: No 
Survived By: Dirk Thomas son Joan Finzer sister

Married to Lowell Thomas and Glen Christensen. She lived in California for a long time then moved back to Michigan to be near her sister. She graduated in 1960 from summer school.