Find Ancestors

Hi I am looking for any help really. I have such a large family i can't seem to get past my nan. on my mothers side or either of my grandparents on my dads side. The history that i do know is. somewhere along the line we come from Kings Lynn, Norfolk, we were horse traders and gypsys. The name of smith got put in somewhere as well but i am not sure if that was from my nans ansctors or my grandads. I am really intrested in going back along my gypsy line. My nan was called Ellen Richardson born 1913 ish and died 1997 in buckinghamshire. if you would like to lok at my tree to see if you can help you are more than welcome too. Any help big or small will be great. Also on my fathers side. My grandad was John Joesph Campbell from sunderland born about 1913 died in hemel hempstead in 1980 ish. We know that the family did start in scotland but slowly moved south of england. He married Olive Foulder. who was born around 1915 and died in 2004. they had 4 children. 3 boys and a girl. Victor, Lilly, Peter and Michael. andthing on my nan Olive foulder would be great too. Patricia