Can someone help me?

Hi, my name is Julie Helferich. I'm trying to find out more about my family. My father did not know much of his family so it is hard to find out more information on them. My father is Dennis Helferich, he has a twin brother named Kenneth Helferich. There father was Herbert Helferich. I'm not sure of my grandfathers fathers name. Does this sound familar to anyone?