Hello Chris I recently found a newspaper extract from a South African newspaper stating a marriage between James Wardlaw Crawford miller to a Helen Mackay from Portobello. Here is a part of the extract:MILLER—MACKAY—On March 22, at St. Andrew’s Presbyterian Church, East London, by the Rev. William Struthers, M.A., assisted by the Rev. Robert C. Sands, Sterkstroom, James Wardlaw Crawford Miller, to Helen, fourth daughter of George MacKay, Portobello.Maybe these were your grandparents? My great grandfather was Robert Wardlaw Crawford Miller, pilot of Kiama Lighthouse in the early 1900's.Im Jeffreys grand niece.We must therefore be related too. Nice to meet you.