Has anyone found out any information about Catherine Sinclair? She was my Father's Great, Great Grandmother on his Mother's side. His Grandmother was Elizabeth Mary Hargrave Scott. There does not seem to be any trail prior to Catherine, which is quite a mystery. Another mystery being that our Father told his children that one of his Great, Great Grandmothers was Indian. Catherine is the only Great, Great, Grandmother with no documentation as to parents, etc..