My Great,Great,Grandmother was Leonarah Robinson she was married to Nickolas Mckenzie they lived Jericho, Good hope. Leonarah was born 1843 in Good hope her father was John Robinson and her mother was Mary a Berry. I was looking through some of my notes and found that on the 14th August 1877 Leonarah Robinson(mckenzie) baptised her daughter Ann, the next baptism was for Jestina Adeline Robinson Born 19th July 1877 Good Hope Parents: Thomas Robinson and Amelia muffit. I also found in my notes Baptism 24th August 1874 Amelia Elizabeth Robinson Born 2nd Feb 1874 Fort George Parents Thomas Robinson & Amelia. William Robinson Born 12th November 1869 Fort George Parents Stephen Robinson and Eliza. I think we might be related, you said the Robinson'smight be from St Mary that would explain why I have been unable to find them before 1840's. Let me know if this was of any help to you.