This set is like 8 years old. I don't beleive she appeared anywhere else, though any new links appreciated.
http://bangbrosnetwork.com/t3/free_movies_pictures_bangbros/bshelen.html
http://www2.bangbrosnetwork.com/t1/profiles?m=Helen2
http://www.bangbros.com/t2/intro?s=bshelen
http://www.gyrls.com/helen/clean.htm