Any Thing on the Williams Line Eather End Please

My father was called Charles Tupua Dominick Williams,his dad was called Richard Williams,b 1858 in County Kerry,Ireland.He came away from his native Island as a lawyer
Grandfather was signed on to become the 1st State Commissioner on Apia,Samoa,under the German Govt.
His partner was a native of Samoa (I've been told that he had more then 1 partner,but have no proof of this,as we my sister and I were only young kids when dads sisters visited us at our home in Kawhia,N.Z.)
Father died age 67 in 1968,leaving 3 sisters that we new off,the other 2 named Hilda and Rosie were never known by us.
Our mum never new much about her elder husband,other then he was sent to N.Z.at a young age to be like a Kiwi on a banana boat from the Islands.