Took a quick look the indexes I have on dingles and found some Richards but non seem to match. I have a lot of john dingles but with some sort of dates, birth ,death ,marriage or reference point Its hard to tell. It sure looks like there is a connection some where as allare family names But the Hennah and Yeager don't match or do I have any reference to them. When I get back from this trip, a short one, I'll send you some References to information on Dingles in Australia that I got off line. The only one I can think of right now is A Tony Dingle that has a book of some kind. How ever I sent him an Email and didn't get a reply but maybe you can find a copy of it somewhere. My sister wrote a book on "Our Dingle Family" but its out of print so I try to reference it For interested parties and hope some day to put forth a supplement as I have gotten a lot mor that not in the book.
Thats little help now but I must get dressed as we leave in a few hours.