I am Charles E. Sibre, living in Annandale, Virginia, USA. This past January I started researching the Sibre's of the world. I can share what I know about Sibre's with you. Found one mention of Henry Sibre living in Australia in 1869. Can you send me what you know?
I have info on over 600 Sibre's. What makes you thing all these names are all inter-related?