When researching for your family, do not rule out that you family could have moved not only to another county, but to another state. When searching in indexes, etc., broaden your search and search in ALL states. I found two of my great-great grandmother's brothers in the 1930 census. I found one of them and living with him was his brother also. They moved from North Carolina to Pennsylvania. So, researchrs, search beyond the box. You never know what you may find.
Happy Searching.
Regina