Thanks for the update! I didn't have Frank's parents so you've helped me tremendously.
As for Aniela I did come across that name a couple of years back now that I think of it but I never made a connection because I was just getting started then and was still very new at this. My gut instinct at the time was that she was related somehow, but I didn't know how and kind of filed it in the back of my mind. Now that I've been at this a while I know to write down EVERYTHING no matter how obscure it might seem.
I know that probably doesn't help you much but I think you are on the right track. Let me know if you get anywhere and I will do the same.