Being the AUSSIE connection here, I get to view the messages later than Christine. As Christine has replied, we have been gathering a number of researchers in order to get back as far as we can on the TYRER line by pooling our resources and our data. By working in this way we were able to see the similarities in the trees each had, which led us to the connections we have been able to achieve.
Harry Tyrer AKA Henry McDonald, married Frances Elizabeth Mayatt. I am a MAYATT researcher but was intriqued by Harry's father now identified as William Orme Tyrer. I was also positive that the man who fathered Harry must have been married at the time. We have since proved this. William marries Catherine some 20 years after Harry is born but he is to die shortly afterwards.
I can be contacted at debrabuchananatcallaustralia.net.au
Replace the "at" with the "@' sign. I also have a second email snodlandopcatcallaustralia.net.au once again replace the "at" with @
If you are a direct descendant of Harry I have a MAYATT file. It runs for over 90 pages and is very detailed. It includes the descendants of Harry and Frances.