Im Looking for My Mother Side of Our Family Tree Herrick Can Any One Help Please

G`Day , this is a Long Shot I Know. Im Looking for My Mother Side of my family Tree, My Mother`s Name is `Teresa Veronica GEYER Her Maiden Name is `HERRICK` (03-09-1918) till (26-09-2005) her Mother ( my Grand Mother ) Name is - Bridget Herrick,and i Know She From a Irish Decent, thats all i know of her , i know my Mother had a Brother Name - Edward Herrick, I have My Fathers Full Side Of Family, Can Anyone Help Me Please..