Have just found this post and shown it to my friend who has Davidson ancestry.As she does not have a computer she has asked me to send this to you. Here goes.....
"My grandmother, born Grace Margaret Davidson in London in 1879, had a younger brother - Leonard Forbes Davidson (Forbes is a middle name from an ancestor). There were 11 children in all. I am told the older ones were born in England and the younger in Singapore. Leonard and his wife Gladys had two or possibly three daughters - one of which, I'm guessing, is your mother as she married a Mr Wilson.
Leonard's parents were Thomas C Davidson born Nov 6 1847, died May 25,1927 and Elizabeth Moss born July 7 1855? (year uncertain), died April 17, 1934. One of Elizabeths sisters married an Emerson.
Thomas had a rubber plantation, said to have been inherited from his brother, at Kuala Kubu, Selangor, Malaya where he lived some of the time (and where he died) and also a house in Singapore where he was honorary US Vice Consul General. He and Elizabeth were buried in Singapore.
I have not been able to trace Thomas's parents but my grandmother was proud of his Scottish ancestry and one of her sisters visited their grandparents in Edinburgh in the 1890s.
Because of the Forbes name and the connection with Singapore, I wonder if Thomas could have been a third son of Gordon Forbes Davidson and Sarah Whittle who in 1845 entered in the register of St Cuthberts parish, Edinburgh the births of two sons, Gordon Forbes born Aug 23 1839 in Singapore and John born Feb 21 1845 in Edinburgh".