Yemm was a male Devaronian. He supervised and provided documentation and legal counsel over the Maw Installation.
In 11 ABY, he was head of the Maw Installation's Administration and Personal Resources Division. He was killed along with most of the scientists at the Maw when Tol Sivron accidentally flew the Death Star prototype down a black hole during the Battle of the Maw in 11 ABY.
- The Jedi Academy Sourcebook
- The Complete Star Wars Encyclopedia