Hello everyone who helped me the last time I was on, I wanted to thankyou for your insights as they were most helpful. I have an update that I'd like to share. Peter Gardner born to Peter and Jane on the 15 Dec in Greenock is indeed my GF (also known as Peter Patrick Houston Henderson Gardner). I have caught up with the GD of his brother, William, and we have matched DNA wise. Hooray an answer. Only problem is that she doesnt have any info either as she didnt know her GF and now lives in USA. So now we are both waiting for the sister's descendants to come.
As far as Peter's shipping career, the River Tay is a yes and I also found him at Chatham as a Collier. He left in 1908 a few months before I have him arriving in Oz. This is about the time he changed his name as he has arrived under the name Patrick and changed his birth year. The ship he arrived in Oz on as a sailor had a captain named Sydney Albert Awning, 2 of his sons names are Sydney and Albert. The discrepancy here is that he has stated he came from DHead??? I know there is one in Ireland but not sure about the rest of the UK. This is the only Peter or Patrick to arrive in Australia in the right time frame but like all other things I could be so wrong.
Thankyou all again so much, it was so helpful, stopped me thinking I was nuts and with that I have gone back a ways back to a Robert Gardner circa 1626 Kilbarchan Renfrewshire and that is where I have stopped, all thanks to you guys confirming my thoughts and giving me a few more clues along the way
Cheers