"Her husband, whose stage name was Lee LeMay, was in Dayton, Ohio in the mid-1970's and met his future wife there. He brought her back to California and promoted her entry into adult films." (imdb)
They were together 1975-1982.
Yes it is Dorothy
http://www.iafd.com/title.rme/title=diamond+collection+film+132/year=1980/diamond-collection-film-132.htm
Would love to know who the other girl is though