I have just decided to try and tract my ancestors but dont really know where to start. any help would be much appreciated. All I know are immediate descendants. My grandfather was Richard Frederick Revell born around 1900. He married Ellen Dunn and had 4 children (1 my Father). He had 1 brother called Jim who married but had no children. My Father died in 1985 so obviously I can get no further information from him.They are all from the Muswell Hill area of London.