Thank you, Graham, and g'day niceguy3399 ...
Sad to say, but since this was posted, there's been some confusion about whether Rev. William and his clan were actually related to my gt gt grandfather Charles Glendower Powell. Seems gt gt grandad was telling a few "porkies", and we haven't as yet managed to either confirm or deny his tales.
Niceguy3399, I've looked through what records we had found on Rev. William, ... and I can't find either a George or an Emma Jane, ... nor do we have any obvious rellies who might have emigrated to Kansas, ... so at this stage, I couldn't say whether there's any connection. If, however, you happen to know that George (for example) had a brother who called himself Charles Glendower Powell (we suspect that the middle name was invented when he reached Oz!) ... then we might just get somewhere

Cheers
Deb