(written from a Production point of view)
The costumer's tag for the Barash costume indicates wear by "Dana Tjulander" as does a final draft of the script for the episode dated 13 September 1990. On the other hand, the Star Trek: The Next Generation Companion by Larry Nemecek spells her last name as "Tjowander". The costume was sold off on the It's A Wrap! sale and auction on eBay and was later sold off again by Propworx.  
Dana Tjulander Brown recalls this day on the set. The production needed someone who was small but over 18 and she was cast through Michael Westmore, a family friend. According to Tjulander, the costume department spelled her last name incorrect while the script department did not.