Hello Gary,
I don't know if you tried this or not, it's kind of far out. I didn't dig to deep into it, but I did do a basic search at classmates. Got zero hits at first but when I removed "commercial" from the school name I got 191 hits. It does seem to be a girls school and there was a couple of people from classes in the 1930's.
Check both of the links:
http://www.classmates.com/sitesearch/results?q=Sacred+Heart+...http://www.classmates.com/people/Dorothy-Palich/400015344589...