Hi Lourdes. This is my first go at sending a photo to Rootschat: fingers crossed! I think I've sent you a photo of Charles as a boy, and also a pic of his father. Hope they arrive OK.
In 1915, according to Arthur Grimble in A Pattern of Islands, Charles was District Officer on an island called Tarawa. By the end of the year he was Administrator of Nauru.
I believe he was Resident Commissioner in the Solomon Islands in 1919-21, and he then spent 10 years in Gambia in Africa. He retired to England, and died in about 1942. Some of the things he brought back from the Pacific were donated to the British Museum after he died.
I can't add anything more about his daughter I'm afraid - other people have already posted the details of what I know, here on this website! She moved to Canada after her marriage, I believe, and I don't know if she kept in touch with cousins etc. I've never seen a photo of her as an adult. Her mother was my great-grandfather's sister - so it's interesting that there's so little information. Maybe all the photos etc went to other relatives?
I hope this helps to fill in a few gaps. Please let me know if I can help in any other way - there are other photos but I'd have to dig them out, will have a look if you're interested. Do you live in Kiribati?