Thank you very much for replying to my query. However the Hugh on the monument is not my ancestor.
My Hugh MacGillivray was born in Scotland. He was my great-great grandfather. His son, John born c1849 was married in Westville in 1872.
I use to walk by that monument on my way to school.
I will share any info I have, but I am not connected through my father to the Antigonish MacGillivrays. I am connected to the Borrodale MacDonalds and through that line there is a MacGillivray connection.