Both Nicole Rio and Pamela Ross attended Wendy Martel's wedding a few years after they filmed Sorority House Massacre. Wendy is from Washington I believe, where she worked in local theatre, but Nicole said she never pursued any other film roles.
Thanks to Dave for the above trivia.
The trailer reuses footage from The Slumber Party Massacre.
Director Carol Frank was assistant to the director on SPM.
Suzee Slater (from Chopping Mall and Savage Streets) is the model for the poster artwork. Of course, she's obviously not in the movie. Thanks to Jim Wynorski for filling me in on this info.