Gilbert ROWAN was also an early settler (Crown land grant, ca 1817) in Caledon. He had nine ch, and I have info on most but not all. The youngest, Mary, moved to San Francisco when an elderly widow with her dau's family and I am descended from that line.
I'd like to find out if this Rowan family is the one connected with MacDonald as I do not have that name in my files yet.