Dear Karen - I am also a descendant of these Tidbury's and have done a fair amount of digging into how all the families are related, etc as it is certain that the names are so duplicated. I have not been very busy lately with any of this and happened to be searching a clip of Donald Grey (Eldred Tidbury) when I noticed this thread and thought I need to share some of the information I have on the family as I do find it so fascinating.
I have connected - to be honest a while ago - with a descendant of your side of the two Tidbury brothers (as it appears to me) who went to SA- here is a quick overview of where I fit in. I have it that their parents were, George and Ellen Tidbury (nee O'Brien) who were it seems married in the Church of St Michael Limerick on 12 June 1842 - George Henry Tidbury was born in October 1849 and Charles Tidbury in December 1852 - both born in Preston Lancashire but the death certificate for Charles Tidbury that I have shows Portsmouth ( well never know how accurate it was in those days) . These two brothers became hoteliers in SA - George Henry at Lower Blinkwater and Charles at Tidbury's Toll in Seymour(then known as Stockenstroom).
GEORGE HENRY married Elizabeth Ann Cahill and had 6 children - Charles Henry, Wiliam Joseph, Susanna Ellen, Mildred Margaret, Albert George and Norman Maxwell.
CHARLES married Emilena Barber and they had 11 children - Charles Henry (again), Walter, Emily, William George, Elizabeth Maria, Robert James, Maude Evelyn, Eulalia Josephine, Anthony Reginald,Myrtle Grace and Everard Vivien. So my grandmother was MAUDE EVELYN - she married Wreford Goodall and they had three boys, Dennis, Basil and Kenneth and one daughter Marjorie -my father was KENNETH Goodall.
I corresponded with Undene Gouverios who did provide me with a lot of the above - she is the grandaughter of WILLIAM JOSEPH TIDBURY who married Matilda Maude Clarke who then had 6 Children - Everett William. Lionel Cuthbert, Constance, Thelma, Edna and Aubrey Aiden - UNDENE's father was EVERETT WILLIAM.
A while ago a researcher from Rhodes University sent me a list of all the Tidbury baptisms done in the Catholic Church in Fort Beaufort as well as a listing of deaths from church registers - it is not complete but did give me a good idea of dates and names of whom to tie up with whom.
I currently live in Dubai and have managed to do a lot of research via the internet - think I have previoiusly corresponded with Eric Cahill and as well with Eric Smith.
Do let me know how you go and if anything here could be of help - I do hold some newspaper cuttings, etc which I can scan to you as well as the church lists.
Take care and look forward to hearing from you.
Warmest
Gaelene Clarke