(written from a Production point of view)
Leslie Frankenheimer was a set decorator for season 2 of Star Trek: Voyager. She worked on every episode of the season except for the first, "The 37's". Frankenheimer was also responsible for the creation of Leonardo da Vinci's workroom in the episodes "Scorpion" and "Concerning Flight", for which's creation she did a lot of research. 
In addition to her work on Star Trek, she has worked on a variety of movies and TV shows in the set decoration department, including Blade Runner, Max Headroom, The Scarecrow and Mrs. King, and Carnivàle.