A little more research shows that the alias Curtis probably was taken from Robin Curtis who played the role of Vulcan Lieutenant Saavik on Star Trek III
There was a Gordon Clapp who played Hadran in Deep Space Nine. That makes seven of his aliases who were probably taken from Star Trek material (see post 741 for Ulos, Mayo, Vanner, Rollins, and Kimball.)
This could easily be debunked based on folks who knew Robert. He would have had to invest quite a bit of time watching Star Wars or Star Trek to gain this depth of knowledge. Both shows and movies were active and those that knew him in NH would have remembered references he would have made.