Fascinating stuff...I don't yet have a record of a May Agar in my searches but I will see what I can find and will keep in touch.
However, one of my own lines of enquiry does seem to fit in very well with your info...I am looking for a connection with a Ceylon Tea Plantation and a branch of the Agar family and some of their relatives (the Blairs) who were Scottish.Originally, I was looking at Agarsland, a Tea Estate in Ceylon, which the Agars owned until 1946 and I wonder whether May Agar was a daughter of those Agars before she married into the Galheeria Estate?
Can you tell me more about Hood Cameron?My Mother can remember the name "Hood" but can't remember anything else -but she knows that it was something to do with someone from her home village. This could be a complete wild-shot but I wonder if Hood ever visited a small village in North Devon called Lee (Nr. Ilfracombe) and stayed with a family called the Blairs (Scottish)? Mrs Helen Blair's son Alistair was born in Ceylon in 1904.She also had a daughter, Nellie who married Frederick Alex Clemens Gibson (Scottish) and they had 3 children, Barbara, Marion and Timothy.After Frederick Gibson died c 1941 she married Cecil Agar (born in York, son of William Henry Agar and Elizabeth Stabler) and they returned from Ceylon (or India) to Lee.
Does any of the above mean anything to you/your researches? Regards Kaye