Hi i may be of this same Parker line that you are looking for.I have a John Parker that Died at the Seige of Louisburg NS or there abouts . After his death his wife move there. I am not sure of the dates at this time I do not have the paper work here right now.
I am also looking for info on another Line Dr. Martin Parker he moved to Montreal in 1811 . He was born in VT. in the 1880's
There is also another lineREV . Ammi Parker i believe that he was in Danville Canada(Canada East) Yes I have come across that also Canada East