Hello Jan,
I have attached a photograph of Alfred taken by G McGrath P15 Her Majesty's Arcade, Sydney.
Since Alfred had only one sister, Alice, I presume she is your grandmother - we visited the Gregory grave when we were in the Hulland area in 2005 but know little of this branch of the family apart from the names of the children.
I don't have Alfred's birth certificate just that he was born in the third quarter of 1883 at Idridghay.
My maiden name is Beeston and I have been researching my Beeston family for many years - they originated (as far back as I have been able to find them) in Mugginton but lived variously in Kniveton (where some are buried), Hognaston, Fenney Bentley and then in Stockport, Cheshire. Whilst searching for them I made contact with local Beestons and have since enjoyed regular visits, letters and phone calls. When they said they had "lost" Alfred in Australia I started researching their family as well and looking for Alfred here in Australia - I have a very extensive tree now and lots of photos - much more than will be on the tree you have.
It is indeed one of Isaac's daughters from whom I obtained many of the photographs and other documents - also her nephew. We visited the area again in January 2009 but as we were not well didn't see Kathleen. Every time we are in touch I get asked about Alfred - it is embarrasing that I have not yet found him. Apparently the last that was heard from him was circa 1930. I have been given other snippets of information - he worked fruit picking in Tasmania, letters were sent to the School of Arts in Sydney, married an Australian girl (cannot find this), last address was some school of music - not sure how much of this is true.
Perhaps I should apply for the 1950 death certificate.
I would like to send a copy of all the documents I have but it is difficult to do so through here. I look forward to hearing more from you.