Bertie was named after my grandfather Herbert Weber Brunt born 1904 in Apia and died in Paeroa NZ about 1976 (also known as Bertie). His only brother was Theodore Weber Brunt (known as Charlie). Theodore Weber Brunt is the father of Charlie, Stan, etc. so I guess he is your grandfather. Adele married Richard Meredith and was well known in Samoa.They had the bakery in Apia in late 1970s when I visited there but I have not kept in touch. They have both passed on and had daughters Gail and Pua and son (?). Charlie, your uncle, is in NZ somewhere. Sorry I cannot be of any more help.