OK - back to the drawing board. I checked the high school yearbooks for schools in the vicinity of Blandford MA. I found the 1974 yearbook for Westfield HS in Westfield MA. There is no Debra Cressotti, but there is a senior photo for a female L.I. Cressotti who is the same age. Also, in the 1972 book, there is a senior photo for a male K.F. Cressotti. Perhaps Cressotti is her surname by marriage.
I also looked through the Class of 1974 for a Debra, Deborah, or Debbie. Couldn't find anyone who looked like a younger version of Debra Cressotti.
The 1973 book is not available in Classmates.