Find Ancestors

Trying to trace any cousins who may be out there. My name is doreen freeth nee smith, my father was alfred frederick smith, the youngest son of Henry and annie Jane Onree, Henry was a laundryman, and the family lived in Golbourne Gardens, Kensington. other siblings were; Mary Ann bn 1884 Alice Charlotte bn 1886, killed by a motorbike. Henry William bn 1888, married Ellen? James Robert bn 1890, killed in france 1916, Emily bn 1893, married Arthur Kennet, Rose Ruth, bn 1895, married Tom Witcombe. Nellie bn 1898 married Joseph Healy, William Walter bn 1900, my dad born 1902 married Annie Ellen Ing, Bill? went to Australia, married Alice who used to write to my mum. Would like to know when our grandparents died and where they are buried.