I’ve just noticed that this thread contains messages going back to 2003 ! The message from Paul Hewson (5/3/2010) looks like a good one for you to reply to.
And I’ve now spotted Paul Hewson’s Family Tree on Ancestry (username bono1712) which includes photos of Richard Charnley b 1802 and James Edmondson Charnley b 1830 (brother of your Robert Charnley b 1829).
Jean C