thank you so much for the reply. I already have some information on hand regarding simon macgillivary and would have thought yourself would have access to this also.
Excellent news, however as I've tried to illustrate particular Grand Masters in the US would be of no interest to me, being in England.
Simon macgillivray was apointed "grand master of the second provincial lodge of Upper Canada from 1822 until 1840 " ( from the history of freemasonary in canada 2 vols toronto 1899 by j.s rpbertson.
Ah, so not in America at all but Canada. Although things are not so different there with several Grand Lodges.
He,s also referred to as being PGM "an experienced mason"
A PGM is a Provincial Grand Master this is not the same thing as a Grand Master but is the "top man" in his Province. A PGL is a division of a Grand Lodge, A Grand Master is in charge of a Grand Lodge and can have dozens of Provincial Grand Masters under him. Here's some detail about Canadian Masonic history: http://faculty.marianopolis.edu/c.belan ... Canada.htm
i am after is someone within the freemasons who actually has a keen interest in its very history
I have a pretty keen interest but there have been several hundred Grand Lodges (with several thousand Grand Masters and that's not even counting Provincial Grand Lodges) with numerous splits, schisms and devlopments over our 300 year history. It would be a very difficult job to become familiar with the history of Freeemasonry all over the world.
Simon Mactavish is said to have also been head of "nth american" or upper canada freemasons .
He cannot have been both as they're two different countries, I would stick with what we know that he was a Provincial Grand Master of Upper Canada.
Chiswick house in London has been suggested to have some connection to freemasons which as usual is being hotly debated and denied . With the above facts put into position of time and location it appears my ancestors placed a very definite real connetion to chiswick house and it MUST have had real relevance to their freemasonary.
I think you may be reading too much into things. There are hundreds of Pubs and Church Halls in England that have also been used as Masonic Temples.