I M Working on My Family Tree on My Fathers Side of the Family the Last Name That I Have is My Grandfather Reginald He Lived IN Tasmania and Married...

I'm working on my Family tree on my Fathers side of the Family The last name that I have is my grandfather Reginald he lived in Tasmania and married Mavis they had 5 children Greame, Brian, Ian, Jill, and Fay if anyone can possible give me more information on this it would be greatly appreciated, thank you