Hi Laurie,
I have an ancestor by that name in my family tree. He was called John "Phadee" Mason, he was born in Scotland and had 3 brothers (Mark, Thomas and Matthew). He migrated to Grenada (Not sure when). His father's name was Thomas Mason who was born in Scotland in 1808 (Christened in 1809) and died in 1903. John Mason was married to an Adelaide Henry Mason. They had a son Mosley who is my grandmother's grandfather. If you have any information please let me know. I found another person on ancestry.com who has the same common ancestors. We have mad contact and confirmed that we are related. It would be great to hear what information you have.
Sabrena