Thanks to you all for responding again.
Yes Irret, I managed to find it afterwards, by putting born Barbados in the search engine. It just said he was with a cook and a servant, I couldn't find Robert Carlos - probably looking in the wrong place. Will have another look in a minutes.
I also looked on Ancestry.com. I cannot open the files, but I can look to see if they are there and found Robert Henry on the 1871 in Rutland. Gosh these Hardys get everywhere. I have asked my cousin to open that one.
Thank you Monica for finding Robert Henry's birth. I know have a father for Robert Carlos and one set of Grandparents.
Family lore was that Robert was previously married before Mildred, so obviously that was before 1916. No I hadn't noticed it, thank you for bringing it to my attention. So it looks as though he might have married either in the West Indies or Nova Scotia.
Mary lives in the States and can usually find her way around their archive system, but so far has been unable to find a death.
Thanks once again.
Eveline