My paternal grandmother was Florance May Vivian McEwan who was born in Oakland Ontario in 1899.(married Constant Eddy of Scotland Ontario, my grandfather.) Her parents were Thomas McEwan, who married, in 1885, a Julia Vivian(my great Grandmother) - who was the daughter of Stephen Vivian (my Great-great Grandfather, a millwright born in Cornwall England (likely Mousehole). He was married to Eliza Jane Waugh.
Stephen Vivian was the son of Stepen Vivian (my Great-Great-Great Grandfather)of Mousehole married to a woman named Robella. They had 12 sons and daughters, all of which had sons named "Stephen", which is where some confusion likely begins!
Also living in Oakland was my Great-great Grandfather Stephen's cousin - another Stephen Vivian. He owned the Saw Mill at one point and drowned "log rolling" as he couldn't swim. I am wondering if Payson Vivian was either his father, who might have passed the mill on to Stephen, or his son, who might have inheiritrd the mill after his death? Do you have some dates of his birth or death or that of your ancestor so we might peace together this mystery?
To add to the confusion, also living in Oakland was another Stephen Vivian from Cornwall that had been a miner there. He was married to Lyma Flanders.
I got all this information from an anecdotal unpublished history of Grandmother McEwan's "Vivian" Ancestry provisionally entitled "Thomas and Julia". The Mill itself was near "...the old bridge..." on "...Pond Road...", a road that circled a pond In Brant County, but bordered on Norfolk County as well. Hope that is helpful.
As an aside she also published (Carleton Press under the nom-de-plume "Julia Vivian") a book called "The Way It Was" - a story of her McEwan ancestors in and around Oakland, Ontario, Canada.
By the way, I would be interested in hearing from and other Vivian decendants who have further knowkledge of Stphen Vivian of Cornwall and any of his decendants that cane to Canada.
Hope this sketch information, although anecdotal, is helpful.