mekadag on Family Tree Circles

i am looking for family members/descendants of my great grandfather/mother. Their names are John Long born abt 1872 in Chelsea London England and Gertrude Long - They had two children (I am not sure) George Long born abt 1894 and Doreen Long born abt 1903-6. Doreen Long is my grandmother she died in 1940. My name is M Graham.