(written from a Production point of view)
Leslie Frankenheimer (died 22 January 2013) 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 she did much research. 
In addition to her work on Star Trek, she worked on a variety of movies and TV shows in the set decoration department, including The Blues Brothers, Blade Runner, The Scarecrow and Mrs. King, Max Headroom, and Carnivàle. She won Emmy Awards for her work on the latter two series.