I don't think my teacher is from Russia, maybe adopted from Russia, that's a really popular thing to do around here, I know a dozen people who were adpoted from Russia or did the adopting, my aunt included-her daughter is from Russia. So quite possibly!
I can understand why you'd want one simple sign for a name instead of fingerspelling all the time! Talkers have sort of nicknames too, instead of Jacob we say Jake, Jennifer is Jenny, Meredith is Mere, and such! So that makes sense. I just wondered if the signs meant that name in a direct translation, but I guess from what I've read of your posts that many times you are given a name that is a quality of who you are/what kind of person you are, joyful, smiley, short, tall, etc?