Around 1999, I was in touch via these boards and e-mail, with a Yak Bondy who avidly searched for his roots. His line went back to Hungary. Therefore, he may not be related, but he might have picked up a lot of detail about other Bondy branches. His research resulted in a CD.
If I am not mistaken, Yak lived/lives in England. Maybe there are readers of this board who know Yak's e-mail address. I will check the CD whether I find references to your Bondy lines.
Regards, Fritz Königshofer, Bethesda, Maryland, USA