Well I don't recall anything specific about her from being from Belarus but in this audio diary - <a>http://bioshock.wikia.com/wiki/Useless_Experiments
. She talks about Germans as if she is not one of them. Ex - Germans, all they can think about is blue eyes, and shape of forehead. Their is more in the audio diary it shows she is not or does not consider herself German the way she talks about them. The fact she is called the kraut scientist in game is more because she worked for the Germans than actually being German herself.