I used to live in Singapore for a couple of years; but the trick in a lot of these things is just knowing where all the websites are!
As about George Robert it only says he was assistant at "Hessa Estate, Tanjong Balei, Asaban, Sumatra", you might look him up by the place he worked in.
Also there are some records in WWII in the newspaper of a G.H.A. Lunberg who is described as a Netherlander, although resident in Penang for more than 18 years and born in Sumatra.
I think this is the brother of Joyce; in 1942 there is a marriage for Lieut. George Henry Arthur Lunberg, R.N.R., who is listed as the son of Mrs N. E. Lunberg and of the late Mr G. R. Lunberg of Asaban, Sumatra. He sadly appears to have died soon afterwards:
http://www.cwgc.org/search/casualty_details.aspx?casualty=2499104
This is stunning! My Nan always talked of Uncle George, she says he was on a boat flying the flag of the Red Cross when it was sunk by the Japanese. I had his Naval License but it is with a family member and cannot be found at the moment. I was hoping to find an obituary for Dr Samuel O'Keeffe but have not had any luck yet. My Nan (Joyce) always talked of friends and family being taken from the area by the Japanese military and many supposedly died building the Death Railway to Burma. My Nan would not even have a Japanese product in the house - she was very bitter and could not forgive or forget!
Gwen is my Nan's Auntie although we always thought they were sisters, my Nan was 1 year older than Gwen. I know Gwen is living in the UK now and I think she is still alive. I would love to visit her but this is a sore subject with them all and I'm not sure what to do. I think J Gawthorne may have died or they separated. They were stoutly religious so separation/divorce is doubtful but not impossible. I have found a Gwen Gawthorne arriving in the UK ca. 1958 but she was alone and had no person of the same name accompanying her.
The DeRozario site has a Dennis O'Keeffe as the son of Dr Samuel O'Keeffe but I can find no record of him. My Nan always talked of Claude and there is a Cyrille Claude mentioned on this site - again I can find no records of him.
Nora (Gwen's sister) came to the UK in 1960 with my Nan, Father and Uncle. She died in 1963, the year of my birth. My father died in 1972 - we never had any contact with my Uncle although apparently he is still living close by. He has spent his life in and out of prison.
It has always been a mystery because my Nan carried an Asian appearance and spoke Malay dialects. We knew she was from Sumatra but the names O'Keeffe conjure Irish ancestors and Westwood seems very English. This is truly fascinating!
Where should I search for parents of Dr O'keeffe, death records for J Gawthorne etc.
Sorry, so many questions, so many memories coming back etc.
Thank you again, you have started to lift a cloud from my mind!
Dave