Hello, I have some information that may be of use to you. I am researching my husbands family tree, his grandmother was a McComber. A Valentine married into the McComber Family.
I believe you were looking for info on William Valentine, who was the father of William Valentine( the one that married Adi Sereima Bolavou). Anyway, Williams father was William, born around 1815 on Levuka Ovalau, and he married Adi Kasanita LikuTabua(born around 1820) of Batiki Island around 1840. They had a daughter named Lydia Valentine( sister to the William who married Sereima Bolavou) who married John Brownell Macomber from the USA, she was born in 1841 in Levuka. In fact John and Lydia had three childre, Ephraim, John and Clara, who died young. Ephraim married Amelia Veimodo who was the daughter of Tui Laucala.They had a quite a family line that is continued to this day.
The second part of the equation here is that Maraia Valentine one of the daughters of Adi Sereimea Bolavou and William Valentine was born in 1876 and married John Macomber on August 11, 1896 in Lomaloma, Lau Group Fiji. This John Macomber was the son of John Brownell Macomber( the original Macomber to Fiji) and Lydia Valentine.
So if I've totally confused you by now thats okay, because it is confusing, but to clarify, John Mccomber married Maraia Valentine, they were cousins, as Johns Mother Lydia Valentine and Maraia's father William Valentine were brother and sister, their parents were William Valentine and Adi Kasanita Likutabua.
Hope that has helped, I have more info on the Macomber family if you would like, but I believe I have answered some of your questions regarding Mr. Valentine.