I am glad that you were able to locate Robert Abramson.
I am also shocked to hear that Maurice died in 1969. I am certain that he was in his early 40's when I was dating Rita through early 1966 (at which time I entered the U.S. Navy during the Viet Nam war).
Oddly enough, my mother had seen Rita at a Long Island hospital in the late 60's,perhaps in 1969.Rita had entered hurriedly and noticed my mom (who was visiting a sick relative) but rushed past her, obviously worried and shaken.I wonder if Maurice ....well, no purpose served by this line of thought.
It is also odd that Robert is no longer in touch with Rita. I remember them as being close, but that was so long ago.
If you are able to locate and contact Rita, please offer my condolences on the loss of her parents, and my best wishes to her.
Life is way too short to lose track of people who were meaningful in our lives.
Best Wishes and Happy Holidays from South Carolina!